Number of Facilities Acquired for which Existing Lease Agreement is Terminated Number of senior housing communities terminated Represents the number of facilities the entity acquired at the end of an acquisition for which existing lease agreement is terminated. Number of Properties with Cancelled Purchase Options for which Existing Lease Agreement is Amended Number of properties with purchase options that will be cancelled on amendment Represents the number of properties with cancelled purchase options that will be cancelled on amendment of existing lease agreement. Number of Properties with Cancelled Purchase Options for which Existing Lease Agreement is Terminated Number of properties with purchase options that will be cancelled on termination Represents the number of properties with cancelled purchase options that will be cancelled on termination of existing lease agreement. Joint Venture Ownership Percentage Ownership percentage (as a percent) Represents the ownership percentage in joint venture. Number of Properties with Cancelled Purchase Options Number of properties with purchase options that will be cancelled Represents the number of properties with cancelled purchase options. Unsecured Debt 4.20 Percent Due 2024 [Member] Senior Unsecured, 4.20% notes due 2024 This element represents senior unsecured 4.20% notes due in 2024. Senior Unsecured Debt 2.7 Percent [Member] Senior unsecured notes, 2.7% Information pertaining to senior unsecured 2.7 percent notes. San Diego 2197 CA [Member] 2197 San Diego CA Springtree 2194 FL [Member] 2194 Springtree FL St. Augustine 802 FL [Member] 802 St Augustine FL Amendment Description St. Louis 853 MO [Member] 853 St Louis MO Amendment Flag St. Petersburg 701 FL [Member] 701 St Petersburg FL St. George 2101 UT [Member] 2101 St George UT St. Peters 2081 MO [Member] 2081 St Peters MO Investment [Axis] Webster 2198 TX [Member] 2198 Webster TX California CALIFORNIA Investment [Domain] Windfield Village 2180 OR [Member] 2180 Windfield Village OR Tenet Healthcare Corporation [Member] Tenet Healthcare Corporation Represents information pertaining to Tenet Healthcare Corporation. Senior Unsecured Debt 5.65 Percent [Member] Senior unsecured notes, 5.65% Information pertaining to senior unsecured 5.65 percent notes. Resident Occupancy Percentage Percentage of resident occupancy Represents the percentage of resident occupancy. Reclassification of in Place Leases from Real Estate to Direct Financing Leases Reclassification of the in-place leases from real estate to DFLs Represents the amount of real estate properties reclassified to direct financing leases. Future contractual principal payments to be received or receivable in 2015 This element represents the minimum future principal payments, net of allowance for loan losses, to be received on loans receivable, including those secured by real estate, in year two from the date of the balance sheet. Mortgage Loans Receivable Future Minimum Payments Receivable in Year Two Florida FLORIDA Area under expanded tenant relationship (in square feet) Area of Real Estate Property Tenant Leases [Member] Tenant leases Represents the tenant leases whereas the entity is the lessor. Land acquired (in acres) Area of Land Senior Housing Partnership [Member] Senior housing partnership Represents information pertaining to a senior housing partnership of the entity. Below Market Leases for Lessee [Member] Below market Leases incurred as part of a real property acquisition at below market lease rate. Above Market Ground Leases Finite Lived Intangible Liabilities Gross Above market ground lease, Gross intangible lease liabilities Represents the gross carrying amount before accumulated accretion, as of the balance sheet date, of above market ground leases intangible liabilities having statutory or estimated useful lives. Real Estate Acquired in Exchange for Sale of Real Estate Fair value of real estate acquired in exchange for sale of real estate Represents the amount of real estate properties acquired in exchange for sale of real estate properties in noncash investing or financing activities. Severance Payments and Other Costs Severance payments and other costs Represents the amount of severance payments and other costs incurred during the period. Current Fiscal Year End Date Award Type [Axis] Senior Housing [Member] Properties that are part of continuing operations, and which are classified as senior housing. Senior housing Senior Housing and Hospital [Member] Combined segments of the entity representing senior housing and hospital facilities. Senior housing and hospital Life science [Member] Properties that are part of continuing operations, and which are classified as life science. Life science Parcel of land in the life science segment Above market Above Market Leases [Member] Medical Office [Member] Properties that are part of continuing operations, and which are classified as medical office. Medical office Post Acute and Skilled Nursing [Member] Properties that are part of continuing operations, and which are classified as post-acute/skilled nursing. Post-acute/skilled Post-acute/skilled nursing Hospital Properties that are part of continuing operations, and which are classified as hospital. Hospital [Member] Loan Receivable Purchased Discount Represents the discount on the face value or par value of loans receivable purchased during the period. Loans receivable purchased, discount Number of Facilities Number of facilities Represents the total number of facilities. Tabular disclosure of the purchase price consideration paid by the reporting entity for an unconsolidated investment. Schedule of Unconsolidated Business Acquisitions, Purchase Price Consideration [Table Text Block] HCP Ventures II purchase consideration Properties that are part of continuing operations, and which are classified as life science and medical office. Life science and medical office Life Science Medical Office [Member] Senior Housing, Life Science and Medical Office [Member] Senior housing, life science and medical office Properties that are part of continuing operations, and which are classified as senior housing, life science and medical office. Document Period End Date Disclosure of all information related to any significant acquisition of properties. Disclosure may include methodology and assumptions, type of asset, asset classification, acquisition cost, method of acquisition and date of acquisition. Real Estate Property Investments Acquisitions of Real Estate Properties Disclosure [Text Block] Advances to unconsolidated joint ventures, net. Advances to Unconsolidated Joint Ventures Net [Member] Advances to unconsolidated joint ventures, net Amounts recognized in the current period related to favorable or unfavorable in-place lease intangibles on acquired leases that are amortized as a reduction of or addition to rental income over the remaining term of the respective leases. Amortization of above and below market lease intangibles, net Amortization of above and below Market Lease Intangibles, Net The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value and the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Impairments Asset Impairment Charges, Cash Flow Impact Brittania Biotech Gateway LP [Member] Britannia Biotech Gateway, LP Represents information pertaining to Britannia Biotech Gateway, LP, an unconsolidated joint venture of the entity. Number of products in reportable segment The number of investment products within the reportable segments of the entity. Products within Reporting Segment Number Represents the interest-only, senior secured term loan receivable from Delphis Operations L.P. Cirrus loan Delphis Operations LP Senior Secured Term Loan [Member] Delphis Supplemental schedule of non-cash financing activities: Cash Flow, Noncash Financing Activities Disclosure [Abstract] Collateral Facilities, Number The number of facilities which are associated with collateral as security for the related loan instrument at the time of issuance. Number of collateral facilities Entity [Domain] Number of continuing care retirement communities under which non-interest bearing life care bonds are issued that are refundable to the resident or resident's estate upon termination or cancellation of the agreement. Number of continuing care retirement communities issuing life care bonds Facility Issuing Life Care Bond, Number Number of CCRC issuing non-interest life care bonds Debt Instrument, Collateral Healthcare Facilities, Carrying Value Carrying amount of healthcare facilities which are secured by mortgage debt. Debt instrument, collateral, healthcare facilities carrying value Number of healthcare facilities used to secure debt Debt Instrument, Collateral Healthcare Facilities, Number Number of healthcare facilities which are secured by mortgage debt. Arrangements and Non-arrangement Transactions [Domain] The limit of the ratio of Consolidated Total Indebtedness to Consolidated Total Asset Value contained in the debt covenants. Debt Instrument, Covenant Debt to Assets Debt instrument, covenant debt to assets (as a percent) Debt instrument, covenant secured debt to assets (as a percent) The limit of the ratio of Secured Debt to Consolidated Total Asset Value contained in the debt covenants. Debt Instrument, Covenant Secured Debt to Assets The required minimum Fixed Charge Coverage ratio contained in the debt covenants. Debt Instrument, Covenant Fixed Charge Ratio, Minimum Debt instrument, covenant minimum fixed charge coverage ratio The required Minimum Consolidated Tangible Net Worth contained in the debt covenants. Debt instrument, covenant net worth Debt Instrument, Covenant Net Worth Debt Instrument, Covenant Unsecured Debt to Unencumbered Assets Debt instrument, covenant unsecured debt to unencumbered assets (as a percent) The limit of the ratio of Unsecured Debt to Consolidated Unencumbered Asset Value contained in the debt covenants. Texas TEXAS Loan Receivable Termination Fee Termination fee Represents the termination fee payable to the entity by the borrower. The current period expense charged against earnings to allocate the cost of tangible and intangible assets used in providing revenue generating services from the entity's discontinued operations. This is a noncash expense that is added back to net income when calculating cash provided by (used in) operations using the indirect method. Discontinued operations Depreciation and Amortization of Real Estate in Place Lease and Other Intangibles Discontinued Operations This element represents the number of transferred properties. Number of transferred properties Transfer of Properties, Number The cash inflow from unconsolidated joint ventures in which the entity does not have sufficient US GAAP earnings (accumulated or in the current period) to distribute funds to partners, thereby constituting a return of investment. Distributions in excess of earnings from unconsolidated joint ventures Distributions in Excess of Earnings from Unconsolidated Joint Ventures Document and Entity Information Down REIT [Member] Down REIT Incremental common shares attributable to the conversion of DownREIT units that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented. Represents information pertaining to Edgewood Assisted Living Center, LLC, an unconsolidated joint venture of the entity. Edgewood Assisted Living Center LLC [Member] Edgewood Assisted Living Center, LLC This item represents the fees earned by the entity from services provided to unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. Fees earned by HCP Equity Method Investment, Fees Earned Business Acquisition, Purchase Price Allocation, Direct Financing Leases Net investments in direct financing leases The amount of acquisition cost of a business combination allocated to net investments in direct financing leases assets. Business Acquisition, Other Disclosures [Abstract] Other acquisition disclosures The amount of restricted cash acquired in a business combination. Restricted cash Business Acquisition, Purchase Price Allocation, Restricted Cash The amount of acquisition cost of a business combination allocated to an identifiable intangible asset. Intangible assets Intangible assets, net Business Acquisition, Purchase Price Allocation, Intangible Assets Business Acquisition, Purchase Price Allocation, Other Receivables Other receivables The amount of acquisition cost of a business combination allocated to other receivables. Investment reported in liabilities Equity Method Investment, Reported in Liabilities The negative investment carrying amount, which is included in accounts payable and accrued liabilities on the balance sheet, for equity method investments. Equity Method Investment, Summarized Financial Information, Accounts Payable The carrying amount of accounts payable for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. Accounts payable The carrying amount of the entity's capital investment by the reporting entity for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. HCP's capital Equity Method Investment, Summarized Financial Information, Entity Capital Equity Method Investment, Summarized Financial Information, Other Partners Capital The carrying amount of the equity investment by other partners for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. Other partners' capital Equity Method Investment, Summarized Financial Information, Real Estate, Net The carrying amount of real estate, net of accumulated depreciation and valuation reserves, if any, reported by an unconsolidated subsidiaries (an equity method investment) of the reporting entity. Real estate, net Summarized combined financial information for unconsolidated joint ventures: Equity Method Investments, Financial Information Details [Abstract] Summarized combined financial information for unconsolidated joint ventures Equity Method Investments, Financial Information [Table Text Block] Tabular disclosure of summarized financial information for the entity's unconsolidated joint ventures. Represents information pertaining to HCP Life Science, an unconsolidated joint venture of the entity. HCP Life Sciences [Member] HCP Life Science Horizon Bay Hyde Park LLC [Member] Represents information pertaining to Horizon Bay Hyde Park, LLC, an unconsolidated joint venture of the entity. Horizon Bay Hyde Park, LLC The number of continuing care retirement communities. Number of retirement communities Number of Retirement Communities HCP Ventures III LLC [Member] HCP Ventures III, LLC Represents information pertaining to HCP Ventures III, LLC, an unconsolidated joint venture of the entity. Four Seasons Health Care [Member] Four Seasons Represents information pertaining to Four Seasons Health Care. Represents information pertaining to HCP Ventures II, an unconsolidated joint venture of the entity. HCP Ventures II [Member] HCP Ventures II HCP Ventures IV, LLC Represents information pertaining to HCP Ventures IV, LLC, an unconsolidated joint venture of the entity. HCP Ventures IV LLC [Member] HCR Manor Care Mezzanine Loan [Member] Represents loans receivable related to an investment in mezzanine loans as part of the financing for The Carlyle Group's purchase of Manor Care, Inc. Each borrower under the loans have been identified as a VIE. HCR ManorCare, mezzanine loan Impairments Intangibles Intangible Assets and Liabilities Disclosure [Text Block] This block of text may be used to disclose all or part of the information related to intangible assets and liabilities. Intangibles Interest rate swap, fixed rate forecasted unsecured debt Derivative instrument which hedges the exposure to fluctuations in the benchmark interest rate component of interest payments on forecasted, unsecured, fixed-rate debt expected to be issued. Interest Rate Swap Fixed Rate Forecasted Unsecured Debt [Member] This element represents interest rate swap entered in July 2005 with maturity in July 2020. Interest rate swap, entered in July 2005, maturity in July 2020 Interest Rate Swap Entered July 2005 Maturity July 2020 [Member] Interest Rate Swap Entered July 2009 Maturity July 2013 [Member] This element represents interest rate swap entered in July 2009 with maturity in July 2013. Interest rate swap, entered in July 2009, maturity in July 2013 Interest rate swap, entered in July 2012, maturity in June 2016 Represents the interest rate swap entered in July 2012 with maturity in June 2016. Interest Rate Swap Entered July 2012 Maturity June 2016 [Member] Interest Rate Swap Entered August 2009 Maturity August 2011 [Member] This element represents interest rate swap entered in August 2009 with maturity in August 2011. Interest rate swap, entered in August 2009, maturity in August 2011 Entity Well-known Seasoned Issuer Interest rate swap, entered in November 2008, maturity in October 2016 Interest Rate Swap Entered November 2008 Maturity October 2016 [Member] This element represents interest rate swap entered in November 2008 with maturity in October 2016. Entity Voluntary Filers Investments in Joint Ventures Senior Housing Facilities Number Represents the number of senior housing facilities owned by the entity and operated by the joint venture. Number of senior housing communities Entity Current Reporting Status Investments in Joint Ventures, Senior Housing Communities, Assumed in Current Triple Net Lease, Number The number of senior housing communities, which are assumed in current triple-net lease included in the joint venture. Number of senior housing communities assumed in existing triple-net lease Entity Filer Category Investments in Joint Ventures, Senior Housing Communities in New Triple Net Lease, Number The number of senior housing communities, which are leased in new triple-net lease included in the joint venture. Number of senior housing communities in new triple-net lease Entity Public Float Investments in Joint Ventures, Senior Housing Communities Assumed, Managed by Third Party, Number The number of senior housing communities, which are assumed managed by third party in the joint venture. Number of senior housing communities assumed formerly managed by Horizon Bay Entity Registrant Name Percentage of Interest in Joint Venture Represents the percentage of interest held by the entity in the real estate and operations of senior living communities under a joint venture agreement. Interest in real estate and operations of senior living communities (as a percent) Entity Central Index Key Investments in Joint Ventures, Senior Living Communities, Operated in RIDEA Structure, Number The number of senior living communities operated in RIDEA structure in which the entity has interest under a joint venture agreement. Number of senior living communities operated in a RIDEA structure Schedule of Recognized Unconsolidated Identified Assets Acquired and Liabilities Assumed [Table Text Block] Summary of fair values of the HCP Ventures II assets acquired and liabilities assumed Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed for an unconsolidated investment. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. LASDK LP [Member] LASDK, LP Represents information pertaining to LASDK, LP, an unconsolidated joint venture of the entity. Hospital and medical office segments A combined segment of business which operates and develops hospital and medical office facilities. Hospital and Medical Office [Member] Entity Common Stock, Shares Outstanding Limited liability companies, number Limited Liability Companies, Number Number of limited liability companies for which the entity is the managing member. Line of Credit and Term Loan The combination of the entity's revolving line of credit facility and term loan. Line of Credit and Term Loan [Member] The interest rate that is used to calculate the amount of interest payable for loans receivable. Loan receivable, interest rate payable (as a percent) Loan Receivable, Interest Rate Payable The gross carrying amount of loans receivable that are subordinated to receivables held by other entities. Mezzanine Loans Receivable, Gross Carrying Amount, Mezzanine This element represents the number of continuing care retirement communities issuing non-interest bearing life care bonds. Number of continuing care retirement communities issuing non-interest life care bonds Continuing Care Retirement Communities Issuing, Life Care Bonds, Number Number of properties that issue life care bonds or collect deposits Locations Issuing Life Care Bonds or Collecting Deposits, Number This element represents the number of facilities issuing non-interest bearing life care bonds that are refundable to the resident or resident's estate upon terms of the agreement. Number of Properties Right to Terminate Management Contracts The number of properties for which the entity acquired the right to terminate the management contracts with the operator. Number of communities, right to terminate management contracts Amount Payable Termination of Management Contracts The amount payable by the entity to the operator for the right to terminate the management contracts. Termination of management contracts, amount Company agreed to pay The working capital received by the entity relating to the termination of the management contracts. Termination of management contracts, working capital received by Company Working Capital Received Termination of Management Contracts Payment to Terminate Leases Amount of payment by the entity to terminate lease contracts with tenants that had entered into management contracts with a previous operator. Termination of leases with tenants, payment by Company Number of Newly Leased Properties Represents the number of properties leased to an operator to the entity. Number of properties leased with Emeritus Corporation Number of properties leased with Emeritus Corporation that were transitioned from Sunrise Capitalized Initial Direct Leasing Cost The capitalized indirect leasing costs of new leases, which represent the net cost to the entity to acquire the right to terminate the management contracts. Initial indirect leasing costs, capitalized cost of termination rights Triple, Net Master Leases with Operator Number Represents the number of triple-net master leases between the entity and the operator. Number of triple-net master leases with Emeritus Number of Extension Options in Master Leases Number of extension options with Emeritus Corporation Represents the number of extension options available under the master net leases by the operator. Extension Options in Master Leases Term Represents the term of the extension options available under the master net leases by the operator. Extended lease term Life Care Bonds Payable Disclosure of accounting policy for non-interest bearing bonds. Non Interest Bearing Bonds Payable [Text Block] Noncontrolling Interests [Policy Text Block] Noncontrolling Interests Disclosure of accounting policy for noncontrolling interests. Document Fiscal Year Focus The current carrying amount of the liability for the non-managing member units. Non-managing member units, carrying value Nonmanaging Member Units, Carrying Value Document Fiscal Period Focus Non-managing member units, market value Nonmanaging Member Units, Market Value The current market value of the liability for the non-managing member units. Number of properties included in discontinued operations Number of Properties Included in Discontinued Operations Number of properties included in discontinued operations during the period. Accumulated amount of amortization of liabilities, excluding financial liabilities, lacking physical substance with a finite life. Intangible liabilities, accumulated amortization Finite Lived Intangible Liabilities Accumulated Amortization Accumulated depreciation and amortization Amount before amortization of liabilities, excluding financial liabilities, lacking physical substance with a finite life. Intangible liabilities, gross Finite Lived Intangible Liabilities, Gross Other Borrowings [Member] Other borrowings not defined elsewhere in the taxonomy. Other Debt The cash inflow from a Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing. Borrowings under term loan Proceeds from Term and Bridge Loans The number of properties held for sale at the reporting date. Number of properties held for sale Properties Held for Sale, Number Number of properties leased by the entity to tenants that have been identified as a VIE. Number of senior housing facilities leased Properties Leased, Number Properties leased, number Fixed lease term of properties leased to Emeritus Corporation Fixed Lease Term in Newly Leased Properties Represents the fixed lease term of properties leased to an operator by the entity. DownREIT LLCs, non-managing member units outstanding The number of non-managing member units outstanding for DownREIT limited liability companies for which the entity is the managing member. Non-managing member units outstanding in DownREIT LLCs (in units) Down Reit Limited Liability Company Nonmanaging Member Units Outstanding DownReit Units Outstanding Non-managing members DownREIT units outstanding The number of DownREIT units outstanding. Legal Entity [Axis] Properties with Direct Financing Leases, Number Number of properties with direct financing leases at the balance sheet date. Properties subject to direct financing leases Document Type Repayments of term loans Repayments of Term Loan Repayments of term loan The cash outflow from repayment of short-term financings such as term loans which are expected to be paid back relatively quickly, sometimes using proceeds from a subsequent long-term loan. Summary of Significant Accounting Policies Vesting of restricted stock units Restricted Stock, Vested The value of stock issued upon which restrictions have lapsed. Schedule of Dividends [Table Text Block] Schedule disclosing the information related to dividends distributed by the entity. Schedule of common stock, cash dividends Schedule disclosing the information related to annual preferred stock dividends distributed by the entity. Schedule of Company's annual preferred stock dividends per share Schedule of Preferred Stock Dividends [Table Text Block] Schedule of Common Stock Dividends [Table Text Block] Schedule disclosing the information related to annual common stock dividends distributed by the entity. Schedule of Company's annual common stock dividends per share Tabular disclosure of the components of the net amount due as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing and sales-type leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs on direct financing leases; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments. Schedule of components of net investment in DFLs Schedule of Net Investment in Direct Financing and Sales Type Leases [Table Text Block] Allowance for Straightline Rent Allowance on straight-line rent assets The valuation allowance attributable to straight-line rent assets. Represents information pertaining to Seminole Shores Living Center, LLC, an unconsolidated joint venture of the entity. Seminole Shores Living Center LLC [Member] Seminole Shores Living Center, LLC Series E cumulative redeemable preferred stock Series E cumulative redeemable preferred stock. Series E Cumulative Redeemable Preferred Stock [Member] Series F cumulative redeemable preferred stock. Series F Cumulative Redeemable Preferred Stock [Member] Series F cumulative redeemable preferred stock Nondividend Distributions (in dollars per share) This element represents the amount of nontaxable distributions made during the year per share. Nondividend Distributions Amount, Per Share Represents information pertaining to Suburban Properties, LLC, an unconsolidated joint venture of the entity. Suburban Properties LLC [Member] Suburban Properties, LLC Third Party Debt Collateralized by Facilities, Asset Carrying Amount The carrying value of facilities owned by the entity that are collateral for third party debt. Third party debt collateralized by facilities, asset carrying amount (maturing in May 1, 2025) Third Party Debt Collateralized by Facilities, Debt Amount Third party debt collateralized by facilities, debt amount (maturing in May 1, 2025) The amount of debt owed by a third party for which the entity's facilities are collateral. Represents information pertaining to Torrey Pines Science Center, LP, an unconsolidated joint venture of the entity. Torrey Pines Science Center [Member] Torrey Pines Science Center, LP Receivable Type [Axis] The amount of unrealized gains or losses on available-for-sale securities and derivatives designated as cash flow hedges. Unrealized gains (losses) on available-for-sale securities and derivatives designated as cash flow hedges, net Unrealized Gain (Loss) on Available for Sale Securities and Derivatives Number of tenants of properties leased by entity for which the tenant is considered a VIE tenant. Number of VIE tenants VIE Tenants, Number Represents loans to borrowers where each tenant and borrower has been identified as a Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. The entity leases property to the tenant under a direct financing lease. Variable Interest Entity Not Primary Beneficiary Tenants with Direct Financing Leases [Member] VIE tenants-DFLs Represents loans to borrowers where each tenant and borrower has been identified as a Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. The entity leases property to the tenant under an operating lease. Variable Interest Entity Not Primary Beneficiary Tenants with Operating Leases [Member] VIE tenants-operating leases This item represents disclosure of the amount of the dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. Equity Method Investment, Dividends or Distributions, Net Distributions received by HCP Equity Method Investment, Related Straight Line Rent Assets Impairment related to straight-line rent assets of HCP Ventures II The excess of carrying value over the fair value of straight line rent assets of equity method investments. NOI NOI NOI is a non-GAAP supplemental financial measure used to evaluate the operating performance of real estate. The Company defines NOI as rental revenues, including tenant recoveries, resident fees and services, and income from direct financing leases, less property level operating expenses. NOI excludes interest income, investment management fee income, depreciation and amortization, interest expense, general and administrative expenses, impairments, impairment recoveries, other income, net, income taxes, equity income from and impairments of investments in unconsolidated joint ventures, and discontinued operations. The Company believes NOI provides relevant and useful information because it reflects only income and operating expense items that are incurred at the property level and presents them on an unleveraged basis. The Company uses NOI to make decisions about resource allocations and to assess and compare property level performance. The Company believes that net income is the most directly comparable GAAP measure to NOI. NOI should not be viewed as an alternative measure of operating performance to net income as defined by GAAP because it does not reflect the aforementioned excluded items. Further, the Company's definition of NOI may not be comparable to the definition used by other REITs, as those companies may use different methodologies for calculating NOI. Net Operating Income from Continuing Operations Adjusted (Cash) NOI Adjusted NOI is calculated as NOI after eliminating the effects of straight-line rents, DFL accretion, amortization of above and below market lease intangibles, and lease termination fees. Adjusted NOI is sometimes referred to as "Cash NOI". Adjusted Net Operating Income from Continuing Operations Adjusted (Cash) NOI Gross assets Assets before Accumulated Depreciation and Amortization The sum of the carrying amounts as of the balance sheet date of all assets prior to aggregate accumulated depreciation and amortization. The recoveries related to previously recorded charges against earnings for the aggregate write down of all assets from their carrying value to their fair value. Impairment Recoveries Impairment recoveries Variable Interest Entities Number of Facilities Placed into Service Number of facilities placed into service This element represents the number of facilities placed into service. Facilities Placed into Operations Capacity The square footage of facilities placed in service This element represents the square footage of the facilities that were placed into service. Deposit to be Retained as Part of Settlement Agreement Deposit to be retained, due to settlement agreement and plan of reorganization The amount of deposits already held by the entity, to be retained further as a part of the settlement agreement and plan of reorganization. Additional Deposit to be Received as Part of Settlement Agreement Additional amount to be received, due to settlement agreement and plan of reorganization The additional amount the entity is entitled to receive as part of the settlement agreement and plan of reorganization. Loan Receivable, Purchased Acquisition Cost Represents the acquisition cost of loans receivable purchased during the period. Cost of loan receivable purchased Loans receivable purchased, face or par value Loan Receivable Purchased Face or Par Value Represents the face value or par value of loans receivable purchased during the period. Number of tenants who filed complaints against Sunrise This element represents the number of tenants that filed complaints together with the entity's subsidiaries against another party. Tenants Filed Complaints with Entity Subsidiaries, Number Subsidiaries of Other Party Included in Complaint, Number This element represents the number of subsidiaries of the party included in the filed complaint. Number of Sunrise subsidiaries The number of complaints filed against a third party by the company's subsidiaries together with tenants that were moved to federal district court. Number of filed complaints moved to District Court Loss Contingency Filed Complaints Moved, Number Communities Associated with Filed Complaints Moved, Number The number of complaints filed against a third party by the company's subsidiaries together with tenants that were moved to federal district court. Number of communities with filed complaints moved to District Court Communities Subject to Dispute, Number Number of communities which are subject to dispute. Number of communities subject to dispute Number of remaining properties leased by the entity to tenants, after termination of management contracts. Number of remaining communities leased after termination on management contracts Remaining Communities Leased after Termination of Rights, Number Non Interest Bearing Occupancy Fee Deposit, Number Non-interest bearing occupancy fee deposits Number of senior housing facilities under which non-interest bearing occupancy fee deposits are outstanding. Variable Interest Entities [Text Block] Variable Interest Entities The entire disclosure for variable interest entities, including description of the terms of arrangements and categorized by: (1) VIEs consolidated because the entity is the primary beneficiary, (2) VIEs not consolidated because the entity is not the primary beneficiary, and (3) VIEs or potential VIEs that are not consolidated because necessary information is not available. Verdict returned in favor of Ventas, compensatory damages The amount of compensatory damages specified in a verdict returned against the entity and was recognized as litigation expense. Loss Contingency Verdict Compensatory Damages Senior housing facilities operated by Sunrise Operators Represents operators of the entity's properties. Operators [Member] Sales Revenues [Member] Aggregate revenues during the period, when it serves as a benchmark in a concentration of risk calculation. Revenue Concentration Risk Revenue Concentration risk, revenue For an entity that discloses a concentration risk, this concept represents the revenue from the type of concentration risk. The amount of revenue excluded from the percentage of concentration risk calculation. Concentration Risk Revenue Excluded Concentration risk, revenue For an entity that discloses a concentration risk, this concept represents the operating expenses from the type of concentration risk. Concentration Risk, Operating Expenses Concentration risk, operating expenses Number of DownREIT LLCs This element represents the number of DownREIT LLCs for which the entity is the managing member. Number of DownREIT LLCs This element represents disclosure of the effect of changes in the interest and foreign currency rate on the fair value of derivatives. Schedule of effect of change in interest and foreign currency rate Schedule of Effect of Change in Interest Rate on Fair Value of Interest Rate Swaps [Table Text Block] Effect of Increase in Interest Rate by 50 Basis Points on Fair Value of Derivatives This element represents the effect of increase in the interest rate by 50 basis points on the fair value of outstanding hedging instruments. +50 Basis Points Effect of Decrease in Interest Rate by 50 Basis Points on Fair Value of Derivatives This element represents the effect of decrease in the interest rate by 50 basis points on the fair value of outstanding hedging instruments. -50 Basis Points Effect of Increase in Interest Rate by 100 Basis Points on Fair Value of Derivatives This element represents the effect of increase in the interest rate by 100 basis points on the fair value of outstanding hedging instruments. +100 Basis Points This element represents the effect of decrease in the interest rate by 100 basis points on the fair value of outstanding hedging instruments. -100 Basis Points Effect of Decrease in Interest Rate by 100 Basis Points on Fair Value of Derivatives Accounts Receivable, Net Accounts receivable, net of allowance of $3,052 and $1,529, respectively Accounts receivable, net For an entity that discloses a concentration risk, this concept represents the increase in revenue due to leasing of the properties to VIE tenants. Concentration Risk Increase in Revenue Concentration risk, increase in revenue For an entity that discloses a concentration risk, this concept represents the increase in operating expense due to leasing of the properties to VIE tenants. Concentration risk, increase in operating expenses Concentration Risk Increase in Operating Expenses Accounts payable and accrued liabilities Accounts payable, accrued liabilities and other Accounts Payable and Accrued Liabilities Fair value of the equity interests owned by noncontrolling preferred unit holders in an entity included in the reporting entity's consolidated financial statements. DownREIT unit, fair value Minority Interest in Preferred Unit Holders, Fair Value Impaired Direct Finance Leases, Number Number of direct financing leases impaired. Number of DFLs impaired Genesis Mezzanine participation loan Genesis Mezzanine Participation Loan [Member] Represents mezzanine participation loans from Genesis. Represents the loans receivable from Genesis known collectively as the Genesis HealthCare Loans. Genesis HealthCare Loans Genesis Health Care Loans [Member] Represents the senior loan receivable from Genesis. Genesis Senior Loans Genesis Senior Loans [Member] This element represents additions to the valuation and qualifying accounts with respect to acquired properties. Acquired Properties Valuation Allowances and Reserves, Reserves of Properties Acquired Accounts, Notes, Loans and Financing Receivable [Line Items] Net Investment in Direct Financing Leases Loans Receivable Disposed Properties Valuation Allowances and Reserves Disposed or Contributed Properties This element represents deductions to the valuation and qualifying accounts with respect to disposed or contributed properties. Valuation Allowances and Reserves Additions [Abstract] Additions Valuation Allowances and Reserves Deductions [Abstract] Deductions Impairment of Lease Due to Early Termination This element represents impairment charges due to the early termination of a lease. Impairment charge due to early termination of a lease Early Termination of Leases, Number This element represents the number of leases which have been terminated early. Early termination of leases, number Impairment charge due to a decrease in expected cash flows Impairment of Facilities Due to Decrease in Expected Cash Flows This element represents the impairment of facilities due to a decrease in expected cash flows. Impairment Due to Transfer of Properties Impairment charge due to transfer of properties This element represents the impairment charge associated with the transfer of properties. Impairment of Facilities Due to Decrease in Expected Cash Flows, Number This element represents the number of impairment of facilities due to decrease in expected cash flows. Impairment of facilities due to decrease in expected cash flows, number CNL Retirement Corp Merger [Member] Represents the information pertaining to CNL Retirement Corporation ("CRC"). CRC Slough Estates USA Incorporations [Member] Represents the information pertaining to Slough Estates, USA Inc. SEUSA State and Local Income Tax Expense (Benefit) Percentage of Aggregate Income Tax Expense (Benefit) Represents state and local income tax expense (benefit) as a percentage of the aggregate income tax expense (benefit), including taxes attributable to both continuing and discontinued operations. State taxes, percentage of total income tax expense (as a percent) Income Tax Expense (Benefit) Intraperiod Tax Allocation, State and Local The sum of state and local income tax expense or benefit for the period that has been allocated among continuing operations, discontinued operations, extraordinary items, other comprehensive income, and items charged or credited directly to shareholders' equity. State taxes, portion of total income tax expense Disposition of Preacquisition Assets Subject to Corporate Level Tax, Period Represents the period following the acquisition for which pre-acquisition assets, if disposed off, are subject to a corporate level tax. Period during which disposition of pre-acquisition assets are subject to corporate level tax Net Income (Loss) Available to Common Stockholders and Participating Securities Represents the amount of net income, after adjustments for dividends on preferred stock, that is attributable to common stockholders and participating securities. Net income available to common stockholders and participating securities Book to Tax Differences [Abstract] Book to tax differences: Represents the amount of the difference between book income and taxable income attributable to net gains on dispositions of assets. Net gains on dispositions of real estate Income Reconciliation, Net Gains on Dispositions of Assets Represents the amount of the difference between book income and taxable income attributable to straight line rent. Straight-line rent Income Reconciliation, Straight Line Rent Represents the amount of the difference between book income and taxable income attributable to depreciation and amortization. Depreciation and amortization Income Reconciliation, Depreciation and Amortization Income Reconciliation, Capitalized Interest Represents the amount of the difference between book income and taxable income attributable to capitalized interest. Capitalized interest Represents the amount of the difference between book income and taxable income attributable to prepaid rent and other deferred income. Prepaid rent and other deferred income Income Reconciliation, Prepaid Rent and Other Deferred Income Represents the amount of the difference between book income and taxable income attributable to income from joint ventures. Income from joint ventures Income Reconciliation, Income from Joint Ventures Represents the amount of the difference between book income and taxable income attributable to income (loss) from subsidiaries. Income (loss) from taxable REIT subsidiaries Income Reconciliation, Income (Loss) from Subsidiaries Income Reconciliation, Impairment Recoveries and Loss Provisions Represents the amount of the difference between book income and taxable income attributable to impairments (recoveries) and loss provisions. Impairments (recoveries) and loss provisions Represents the amount of the difference between book income and taxable income attributable to interest income. Interest income Income Reconciliation, Interest Income Loan and direct financing lease interest accretion Accretion Expense Income Reconciliation, Other Differences, Net Represents the amount of the difference between book income and taxable income attributable to other differences. Other book/tax differences, net Taxable income available to common stockholders Taxable Income Available to Common Stockholders This element represents the taxable income (loss) available to common stockholders. Represents the entity's income tax details. Schedule of Income Disclosure [Table] Income Tax Disclosure [Line Items] Income tax disclosure Stock Based Compensation 2006 Incentive Plan [Member] Represents 2006 Performance Incentive Plan approved by stockholders on May 11, 2006. 2006 Incentive Plan Restricted Stock and Restricted Stock Unit [Member] Represents restricted shares and performance restricted stock units issued under stock-based incentive plan. Restricted Stock and Performance Restricted Stock Units This element represents the Chairman and Chief Executive Officer of the reporting entity. Chairman and Chief Executive Officer [Member] Chairman and Chief Executive Officer Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Available for Grant as Restricted Stock and Performance Restricted Stock Units This element represents the number of shares available for grant which may be issued as restricted stock and performance restricted stock units. Maximum number of shares available for future awards to be issued as restricted stock and performance restricted stock unit Represents exercise price of stock options ranging from $23.34 to $25.52. Range of Exercise Price 23.34 to 25.52 [Member] 23.34 - 25.52 Range of Exercise Price 27.11 to 28.35 [Member] 27.11 - 28.35 Represents exercise price of stock options ranging from $27.11to $28.35. Represents exercise price of stock options ranging from $31.95 to $39.72. Range of Exercise Price 31.95 to 39.72 [Member] 31.95 - 39.72 Share-based Compensation Arrangement by Share-based Payment Award, Options Unvested Share Based Compensation Arrangement by Share Based Payment Award, Options Unvested [Roll Forward] Unvested at the beginning of the period (in shares) Unvested at the end of the period (in shares) Share Based Compensation Arrangement by Share Based Payment Award, Options Unvested Outstanding Number The number of shares reserved for issuance under stock option agreements awarded under the plan that are unvested and outstanding as of the balance-sheet date. Vested (in shares) Share Based Compensation Arrangement by Share Based Payment Award, Options Vested in Period The number of stock options that vested during the reporting period. The weighted average grant date fair value of nonvested options that are outstanding as of the balance-sheet date, under stock option plans. Unvested at the beginning of the period, weighted average grant date fair value (in dollars per share) Unvested at the end of the period, weighted average grant date fair value (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options Unvested, Weighted Average Grant Date Fair Value Vested, weighted average grant date fair value (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options Vested in Period, Weighted Average Grant Date Fair Value The weighted average grant-date fair value of options vested during the reporting period. Share Based Compensation Arrangement by Share Based Payment Award, Options Unvested Forfeitures in Period, Weighted Average Grant Date Fair Value The weighted average grant-date fair value of unvested options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Forfeited, weighted average grant date fair value (in dollars per share) Share Based Compensation Arrangement by Share Based Payment Award, Options Vested in Period Total Intrinsic Value The total dollar difference between fair values of underlying shares on dates of vesting and exercise prices of options that vested during the reporting period under the plan. Total vesting date intrinsic values (at vesting) of shares under options vested Share Based Compensation Arrangement by Share Based Payment Award, Options Vested Intrinsic Value The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options that are vested under the plan as of the balance sheet date. Total intrinsic value of vested shares under options at the end of the period Performance restricted stock unit is convertible into common stock (in shares) This element represents the number of common shares into which each vested performance restricted stock unit may be converted. Share Based Compensation Arrangement by Share Based Payment Award Conversion Ratio Represents the number of shares withheld by the reporting entity to offset tax withholding obligations of participants. Shares withheld to offset tax withholding obligations (in shares) Share Based Compensation by Share Based Payment Award Shares Withheld to Offset Tax Withholding Obligations This element represents the maximum percentage of each participant's eligible compensation for which the entity will provide a matching contribution. Defined Contribution Plan Matching Contribution Maximum Percentage Matching contribution by Company, maximum percentage of participant's eligible compensation Ordinary dividends (in dollars per share) Ordinary Dividends Amount, Per Share This element represents the amount of ordinary dividends distributed during the year per share. This element represents the amount of capital gain dividends distributed during the year per share. Capital Gain, Dividends Amount, Per Share Capital gain dividends (in dollars per share) Total dividends (in dollars per share) Dividends Amount, Per Share This element represents the total dividends distributed during the year per share. Represents the information pertaining to Mr. Elcan, the former executive vice president of the entity. Mr. Elcan, the former executive vice president Executive Vice President Elcan [Member] Executive Vice President Klaritch [Member] Represents the information pertaining to Mr. Klaritch, an executive vice president of the entity. Mr. Klaritch, an executive vice president Related Party Transactions, Minimum, Percentage of Ownership, Directly or Indirectly Owned Represents the minimum percentage of ownership directly or indirectly owned through common stocks by the related party in the reporting enterprise. Minimum percentage of ownership deemed to be owned directly or indirectly in common stocks of the reporting entity by the related party (as a percent) Number of non-managing member DownREIT units received on distribution of rights Number of Non Managing Member, Units Received Represents the number of non-managing member units received on distribution of interest. Redemption of Down REIT Units in Cash Equivalent of Market Value of Entity's Common Stock Represents the number of shares of which current market value would be receivable on redemption of DownREIT units. DownREIT units converted Redemption of Down REIT Units in Number of Shares Represents the number of shares receivable on redemption of DownREIT units. Number of common of DownREIT units in number of shares (in shares) Earned additional interest income resulting from cash flow hedges Derivatives Hedge Additional Reduction Interest Income Represents the amount of addition (reduction) to interest income resulting from cash flow and fair value hedges. Derivatives Hedge Addition (Reduction) Interest Expense Represents the amount of addition (reduction) to interest expense resulting from cash flow and fair value hedges. Additional interest expense resulting from cash flow hedges Schedule of Expected Amortization of Intangible Assets and Intangible Liabilities [Table Text Block] Tabular disclosure of the estimated aggregate amortization expense expected to be recorded in succeeding fiscal years for intangible assets and liabilities. Estimated aggregate amortization of intangible assets and liabilities for each of the five succeeding fiscal years and thereafter This element represents the remaining weighted-average amortization period of unfavorable market lease intangibles, in years. Approximate remaining weighted-average amortization period of unfavorable market lease intangibles Finite Lived Intangible Liabilities, Weighted Average Remaining Amortization Period Additional revenues from the amortization of net below market lease intangibles included in rental income Amortization of Below Market Lease Intangibles Net Additional Revenue This element represents the additional revenue from amortization of net below market lease intangibles. Amortization of Above Market Ground Lease Intangibles Net Additional Expense This element represents the additional expense from amortization of net above market ground lease intangibles. Additional expense from the amortization of net above market ground lease intangibles included in operating expenses Additional expense from the amortization of lease-up and non-compete agreement intangibles included in depreciation and amortization expense Amortization of Lease Up and Non Compete Agreement Intangibles Additional Expense This element represents the additional expense from amortization of lease-up and non-compete agreement intangibles. Estimate aggregate amortization of Intangible Liabilities Finite Lived Intangible Liabilities Future Amortization Expense [Abstract] Off Market Lease Unfavorable Future Amortization Expense Year One Amount of amortization expected to be recognized during the next fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Estimated aggregate amortization of intangible liabilities, 2014 Finite Lived Intangible Liabilities Amortization Year Two Amount of amortization expected to be recognized during the next fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Estimated aggregate amortization of intangible liabilities, 2015 Estimated aggregate amortization of intangible liabilities, 2016 Finite Lived Intangible Liabilities Amortization Year Three Amount of amortization expected to be recognized during the third fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Amount of amortization expected to be recognized during the fourth fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Estimated aggregate amortization of intangible liabilities, 2017 Finite Lived Intangible Liabilities Amortization Year Four Amount of amortization expected to be recognized during the fifth fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Estimated aggregate amortization of intangible liabilities, 2018 Finite Lived Intangible Liabilities Amortization Year Five Amount of amortization expected to be recognized after the fifth fiscal year following the latest fiscal year for liabilities, excluding financial liabilities lacking physical substance with a finite life. Estimated aggregate amortization of intangible liabilities, thereafter Finite Lived Intangible Liabilities Amortization after Year Five Investments classified as cash equivalents, maximum maturity period Investments Classified as Cash Equivalents Maximum Maturity Period Represents the maximum maturity period of investments to be classified as cash equivalents. Minimum limited-lives of joint ventures This element represents the minimum limited-lives of joint ventures. Minimum Limited Life of Joint Ventures Minimum period of vacancy for non-interest bearing occupancy fee deposits that are refundable on re-letting This element represents the minimum period of vacancy for non-interest bearing occupancy fee deposits that are refundable or upon re-letting. Minimum Period of Vacancy for Occupancy Fee, Deposit Refund Real Estate Investment Trust Failure to Qualify Ineligibility Period Failure to qualify as REIT, ineligibility period This element represents the number of tax years, for which REIT may be ineligible to qualify as REIT, subsequent to the taxable year in which it fails to qualify as REIT. CCRC JV [Member] CCRC JV Represents a strategic joint venture that owns and operates continuing care retirement community compuses ("CCRC JV"). This element represents the monthly interest-only payment amount on mortgage loans receivable. Monthly interest-only payment Mortgage Loans on Real Estate, Monthly Interest, Only Payment Receivable Interest and principal payments Mortgage Loans on Real Estate, Interest and Principal Payment Receivable This element represents the payment amount of principal and interest on mortgage loans receivable. Tabular disclosure summarizing annualized lease payments (base rent only) to be received from certain leases containing purchase options whereby the tenant may elect to acquire the underlying real estate, including DFLs, subject to purchase options, in the year that the purchase options are exercisable. Summary of annualized base rent from leases subject to purchase options, summarized by the year the purchase options are exercisable Schedule of Lease Payments of Tenant Purchase Options [Table Text Block] This element represents the minimum future principal payments, net of allowance for loan losses, to be received on loans receivable, including those secured by real estate, within the next year. Mortgage Loans Receivable Future Minimum Payments Receivable in Next Fiscal Year Future contractual principal payments to be received or receivable in 2013 This element represents the minimum future principal payments, net of allowance for loan losses, to be received on loans receivable, including those secured by real estate, in year three from the date of the balance sheet. Mortgage Loans Receivable Future Minimum Payments Receivable in Year Three Future contractual principal payments to be received or receivable in 2016 This element represents the minimum future principal payments, net of allowance for loan losses, to be received on loans receivable, including those secured by real estate, in year four from the date of the balance sheet. Future contractual principal payments to be received or receivable in 2017 Mortgage Loans Receivable Future Minimum Payments Receivable in Year Four Future contractual principal payments to be received or receivable in 2018 This element represents the minimum future principal payments, net of allowance for loan losses, to be received on loans receivable, including those secured by real estate, in year five from the date of the balance sheet. Mortgage Loans Receivable Future Minimum Payments Receivable in Year Five Debt instrument maturing in 2019 Debt Instrument Due 2019 [Member] This element represents the long-term debt maturing in 2019. RIDEA JV [Member] RIDEA JV Represents a joint venture with a portfolio of non-stabilized properties ("RIDEA JV"). Debt instrument maturing in 2020 Debt Instrument Due 2020 [Member] This element represents the long-term debt maturing in 2020. Debt Instrument Due 2021 [Member] Debt instrument maturing in 2021 This element represents the long-term debt maturing in 2021. Debt Instrument Due 2022 [Member] Debt instrument maturing in 2022 This element represents the long-term debt maturing in 2022. Debt Instrument Due 2041 [Member] This element represents the long-term debt maturing in 2041. Debt instrument maturing in 2041 Operating Leases Remaining Contractual Term This element represents the maximum contractual term of an operating ground lease as of the balance sheet date. Maximum remaining term of ground leases excluding extension options HCA Incorporation [Member] Represents details pertaining to HCA. HCA HCPI Tennessee Limited Liability Company [Member] HCPI/Tennessee, LLC Represents details pertaining to HCPI Tennessee, LLC. Leases with Purchase Option Future Annualized Minimum Payments Receivable [Abstract] Leases with purchase options, annualized base rent receivables in next five years and thereafter Leases with Purchase Option Future Minimum Annualized Base Rent Receivable Current Future annualized base rental payments receivable within one year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables in 2014 Leases with Purchase Option Future Minimum Annualized Base Rent Receivable in Two Years Future annualized base rental payments receivable within second year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables in 2015 Leases with Purchase Option Future Minimum Annualized Base Rent Receivable in Three Years Future annualized base rental payments receivable within third year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables in 2016 Future annualized base rental payments receivable within fourth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables in 2017 Leases with Purchase Option Future Minimum Annualized Base Rent Receivable in Four Years Future annualized base rental payments receivable within fifth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables in 2018 Leases with Purchase Option Future Minimum Annualized Base Rent Receivable in Five Years Leases with Purchase Option Future Minimum Annualized Base Rent Receivable Thereafter Future annualized base rental payments receivable after the fifth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with purchase option, annualized base rent receivables thereafter Leases with Purchase Option Future Minimum Annualized Base Rent Receivable Future annualized base rental payments receivable for the five years following the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Total leases with purchase option, annualized base rent receivables Leases with Purchase Option Future Annualized Minimum Payments Receivable Number of Properties [Abstract] Number of properties with purchase options, annualized base rent receivables Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties Current Number of properties for which future annualized rental payments are receivable within one year of the balance sheet date, on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Number of properties with a purchase option, annualized base rent receivables in 2014 Number of properties for which future annualized rental payments are receivable within second year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Number of properties with a purchase option, annualized base rent receivables in 2015 Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties in Two Years Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties in Three Years Number of properties for which future annualized rental payments are receivable within third year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Number of properties with a purchase option, annualized base rent receivables in 2016 Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties in Four Years Number of properties for which future annualized rental payments are receivable within fourth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Number of properties with a purchase option, annualized base rent receivables in 2017 Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties in Five Years Number of properties for which future annualized rental payments are receivable within fifth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Number of properties with a purchase option, annualized base rent receivables in 2018 Number of properties with a purchase option, annualized base rent receivables thereafter Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties Thereafter Number of properties for which future annualized rental payments are receivable after the fifth year of the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Leases with Purchase Option Future Minimum Annualized Payments Receivable Number of Properties Number of properties for which future annualized rental payments are receivable for the five years following the balance sheet date on leases with purchase options, whereby the tenant may elect to acquire the underlying real estate. Total number of properties with a purchase option, annualized base rent receivables Concentration Risk Assets Excluded Concentration risk, assets The amount of assets excluded from the percentage of concentration risk calculation. Maximum Period Available for Occupancy after Cessation of Significant Construction This element represents the period for occupancy, upon the completion of tenant improvements, after the cessation of significant construction activity. Maximum period available for occupancy from cessation of significant construction activity Represents the minimum threshold percentage required in determination of whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount to perform the two-step goodwill impairment test. Impairment of Goodwill Threshold Percentage Minimum Impairment of goodwill threshold percentage, minimum Allowance Accounts This element represents the allowance accounts including the allowance for doubtful accounts, straight-line rent reserves, and allowances for loan and direct financing lease losses. Allowance Accounts [Member] Capital Raising Issuance Costs Capital Raising Issuance Costs [Policy Text Block] Disclosure of accounting policy for costs incurred in connection with raising capital. Implied volatility traded option on common stock period The estimated measure of the period by which a share price is expected to fluctuate during that period. Share Based Compensation Arrangement by Share Based Payment Award, Fair Value Assumptions, Expected Volatility Period HCR Manor Care Inc [Member] HCR ManorCare Represents HCR ManorCare, Inc. with which entity has entered into agreement to purchase real estate assets. HCR ManorCare Cash required to pay in consideration of acquisition Cash portion of the consideration that will be paid for the acquisition. Proposed Business Acquisition, Cost of Acquired Entity, Cash Required to Pay Aggregate par value of investments in issued debt This element represents the par value of loans receivable from the settlement of entity's existing loan investments in acquiree, which will be reinvested to satisfy consideration of proposed acquisition. Par value of loans receivable reinvested Proposed Business Acquisition, Cost of Acquired Entity, Loans Receivable Par Value, Reinvested Proposed Business Acquisition, Cost of Acquired Entity, Common Stock Issuable Value Value of common stock issuable in consideration of acquisition Value of the common stock of the acquirer issuable in consideration for the business combination. Bridge Loan Commitments Obtained Bridge loan commitments obtained from a syndicate of banks Short-term financing commitment which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing. Number of Facilities Acquired Number of senior housing communities Number of post-acute, skilled nursing and assisted living facilities acquired Represents the total number of facilities the entity acquired at the end of an acquisition. Number of facilities acquired Number of Communities that are Stabilized Number of communities that are stabilized Represents the number of communities that are stabilized. Number of Communities Currently Lease Up Number of communities currently lease-up Represents the number of communities currently lease-up. Proposed Business Acquisition, Cost of Acquired Entity, Common Stock Issuable, Number Number of common stock issuable in consideration of acquisition (in shares) The number of shares of common stock of the acquirer issuable in consideration for the business combination. Unsecured Debt 2.7 Percent Due 2014 [Member] This element represents senior unsecured 2.7% notes due 2014. Senior Unsecured, 2.70% notes due 2014 Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Unsecured Debt 6.45 Percent Due 2012 [Member] Senior Unsecured, 6.45% notes due 2012 This element represents senior unsecured 6.45% notes due 2012. Unsecured Debt 4.82 Percent Due 2011 [Member] Senior Unsecured, 4.82% notes due 2011 This element represents senior unsecured 4.82% notes due 2011. Unsecured Debt 3.75 Percent Due 2019 [Member] This element represents senior unsecured 3.75% notes due 2019. Senior Unsecured, 3.75% notes due 2019 Unsecured Debt 3.15 Percent Due 2022 [Member] Senior Unsecured, 3.15% notes due 2022 This element represents senior unsecured 3.15% notes due 2022. Unsecured Debt 2.625 Percent Due 2020 [Member] This element represents senior unsecured 2.625% notes due 2020. Senior Unsecured, 2.625% notes due 2020 Unsecured Debt 5.625 Percent [Member] Senior Unsecured, 5.625% Information pertaining to senior unsecured 5.625 percent notes. This element represents senior unsecured 3.75% notes due 2016. Senior Unsecured, 3.75% notes due 2016 Unsecured Debt 3.75 Percent Due 2016 [Member] Unsecured Debt 5.375 Percent Due 2021 [Member] This element represents senior unsecured 5.375% notes due 2021. Senior Unsecured, 5.375% notes due 2021 Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Supplemental Executive Retirement Plan minimum liability Unsecured Debt 6.75 Percent Due 2041 [Member] This element represents senior unsecured 6.75% notes due 2041. Senior Unsecured, 6.75% notes due 2041 Unrealized losses on cash flow hedges, net Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Debt Instrument, Weighted Average Maturity This element represents weighted average maturity of debt. Weighted-average maturity Unrealized losses on available for sale securities Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Bridge Loan Commitments, Reduced Bridge loan commitments, reduced Represents amount of reduction in bridge loan commitment due to applicability of terms of agreement. Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Total accumulated other comprehensive loss Represents the length of the debt instrument extension period. Length of debt instrument extension period Debt Instrument, Period of Extension Line of Credit, Facility Additional Available Borrowing Capacity Maximum This element represents the maximum additional borrowing capacity available under the credit facility, subject to customary conditions. Line of credit facility additional aggregate amount, maximum Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Loans receivable related to the entity's purchase of a participation in the first mortgage debt of HCR ManorCare as part of the financing for the Carlyle Group's acquisition of Manor Care, Inc. HCR Manor Care Participation in First Mortgage Debt [Member] HCR ManorCare, participation in first mortgage debt Represents the par value of debt assumed as part of the acquisition. Par value of debt assumed Business Acquisition Debt Assumed Par Value Estimated fees and costs Estimated Fees and Costs [Abstract] Business Acquisition, Gain (Loss) on Settlement of Loan Investments Represents the amount of net gain (loss) recognized by the entity on settlement of its loan investments, which represents excess of fair value of loan investment over its carrying value. Gain on settlement of loan investments Amount of direct costs of the business combination related to general and administrative costs incurred to consummate the business acquisition. Business Acquisition Cost of Acquired Entity General Administrative Transaction Costs Cost of transaction classified as general and administrative expense Amount of direct costs of the business combination related to interest expense incurred to consummate the business acquisition. Business Acquisition Cost of Acquired Entity Interest Expense Transaction Costs Cost of transaction classified as interest expense Cumulative Dividends In Excess Of Earnings Accumulated Distributions in Excess of Net Income [Member] Business Acquisition Cost of Acquired Entity Estimated Fees and Costs Represents estimated fees and costs as part of the business acquisition. Total estimated fees and costs Cumulative foreign currency translation adjustment Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Represents the fair value of accrued liabilities assumed as a result of business acquisition by the reporting entity. Business Acquisition Accrued Liabilities Assumed Fair Value Disclosure Assumed HCR ManorCare accrued liabilities at fair value Represents estimated debt assumption fees as part of the business acquisition. Debt assumption fees Debt issuance fees Business Acquisition, Cost of Acquired Entity Debt Assumption Fees Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges Amount paid for additional equity interest acquired through exercise of option Business Acquisition Equity Interest Acquired Through Exercise of Option Represents the amount paid for additional equity interest acquired by the reporting entity through the exercise of an option. Bridge Loan, Term of Facility Represents the length of time of the bridge loan facility term. Length of bridge loan facility term Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Number of Unconsolidated Joint Venture Represents number of unconsolidated joint ventures between entity and an institutional capital partner. Number of unconsolidated joint ventures Number of RIDEA joint ventures Number of portfolios Gain (Loss) upon Consolidation of Joint Venture Gain upon consolidation of joint venture Gain on consolidation of joint venture Pretax gain (loss), not previously recognized and resulting from the consolidation of joint venture interest, which is recognized at the date of consolidation. A gain (loss) reflects the amount by which the consideration paid exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on consolidation, if any) of the joint venture interest, which, for cash flow reporting, is a component of proceeds from investing activities. Number of Senior Housing Facilities Number of senior housing facilities owned by a joint venture. Number of senior housing facilities Number of senior housing facilities purchased Represents the fair value of accrued tax and other liabilities assumed as a result of business acquisition by the reporting entity. Assumed HCR ManorCare accrued tax and other liabilities at fair value Business Acquisition, Accrued Tax and Other Liabilities Assumed, Fair Value Disclosure Interest and penalties due on mortgage loans The amount of acquisition cost of a business combination allocated to interest and penalties due on mortgage loans. Business Acquisition, Purchase Price Allocation, Interest and Penalties on Mortgage Loans Cumulative dividends in excess of earnings Accumulated Distributions in Excess of Net Income Business Acquisition, Purchase Price Allocation, Mezzanine Loans Mezzanine loans The amount of acquisition cost of a business combination allocated to mezzanine loans. Interest and penalties due on mezzanine loans The amount of acquisition cost of a business combination allocated to interest and penalties due on mezzanine loans. Business Acquisition, Purchase Price Allocation, Interest and Penalties on Mezzanine Loans Business Acquisition, Purchase Price Allocation, Fair Value Adjustment of Mortgage and Mezzanine Loans Fair value adjustments to mortgage and mezzanine loans The amount of acquisition cost of a business combination allocated to fair value adjustments to mortgage and mezzanine loans. Business Acquisition, Purchase Price Allocation, Uncertain Tax Position Liabilities Uncertain tax position liabilities The amount of acquisition cost of a business combination allocated to uncertain tax position liabilities. Business Acquisition, Purchase Price Allocation, Taxes Payable Taxes payable The amount of acquisition cost of a business combination allocated to taxes payable. Business Acquisitions, Pro Forma Net Income (Loss) Attributable to Parent The pro forma net income or loss attributable to the parent for the period as if the business combination or combinations had been completed at the beginning of a period. Net income applicable to HCP, Inc. Business Acquisition, Advisory Fees Advisory fees Represents advisory fees incurred to consummate the business acquisition. Represents the carrying amount of capital lease obligations and mortgage debt reported by an unconsolidated subsidiaries (an equity method investment) of the reporting entity. Equity Method Investment, Summarized Financial Information, Capital Lease Obligations and Mortgage Debt Capital lease obligations and mortgage debt Equity Method Investment Ownership Percentage Subject to Dilution The percentage of ownership of common stock or equity participation in the investee subject to dilution accounted for under the equity method of accounting. Ownership percentage presented after adjusting Investments in Loan Receivables Fair Value In a business combination, this element represents the fair value of the investments in loans receivable in the acquiree the reporting entity held at the acquisition date. Settlement of loans receivable as consideration for the HCR ManorCare Acquisition HCP's loan investments in HCR ManorCare's debt settled at fair value Variable Interest Entity Not Primary Beneficiary Senior Loans Secured [Member] Represents senior secured loans to borrowers where borrower has been identified as a Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. Loan-senior secured Loan - subordinated secured Represents subordinated secured loans to borrowers where borrower has been identified as a Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. Variable Interest Entity Not Primary Beneficiary Subordinated Secured [Member] Variable Interest Entity Not Primary Beneficiary Debt Investment [Member] CMBS Represents a debt investment with a party that has been identified as a Variable Interest Entities (VIE) in which the entity does not have a controlling financial interest (as defined) and of which it is therefore not the primary beneficiary. Represents other secured loans receivable not otherwise specified in the taxonomy. Other Secured Other Loans Receivable Secured [Member] Tandem Health Care Loan [Member] Represents information pertaining to Tandem Health Care Loan. Tandem Health Care Loan Represents the first tranche of the Tandem Health Care loan receivable. Tandem Health Care Loan - First Tranche Tandem Health Care Loan First Tranche [Member] Represents the second tranche of the Tandem Health Care loan receivable. Tandem Health Care Loan - Second Tranche Tandem Health Care Loan Second Tranche [Member] Represents the number of stages required to complete the acquisition. Acquisition Number of Stages Number of stages for acquisition to close Sunrise Senior Living Represents information pertaining to Sunrise Senior Living, Inc. Sunrise [Member] Emeritus Corporation Emeritus Represents information pertaining to Emeritus Corporation. Emeritus [Member] Number of Leases Number of individual leases The number of leases. Total purchase consideration Purchase price of agreed acquisition Business Acquisition, Cost of Acquired Entity, Purchase Price Excluding Direct Costs The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, excluding direct costs of the acquisition. Reflects allowance related to accrued interest receivable to the reserve for bad debts arising from purchase of loan and lease portfolios. Allowance for Loan and Lease Losses, Loans Acquired Related to Accrued Interest Receivable Allowance provision related to accrued interest receivable Reserve related to accrued interest receivable Tabular disclosure of all significant reconciling items in the reconciliation of the entity's net income to net operating income and adjusted net operating income. Reconciliation of Net Income to Net Operating Income and Adjusted Net Operating Income [Table Text Block] Reconciliation of reported net income to NOI and adjusted NOI Rental Revenues The total amount of rental and related revenues, tenant recoveries and income from direct financing leases recognized for the period. Rental Revenues Impairment losses on real estate Discontinued Operation, Impairment Charge Impairments Represents the impairment charge pertaining to the discontinued operation. Residency agreement term, maximum Residency Agreement Term, Maximum Represents the maximum period specified under the residency agreement. Residency Agreement Term, Minimum Represents the minimum period specified under the residency agreement. Residency agreement term, minimum Shares Authorized under Stock Option Plan Exercise Price Range Share Based Compensation, Shares Authorized under Stock Option Plans, Exercise Price, Range [Abstract] Unrecognized Tax Benefits Increase Resulting from Acquisitions Increase in unrecognized tax benefits assumed in connection with acquisitions The gross amount of increases in unrecognized tax benefits resulting from unrecognized tax benefits assumed in connection with acquisitions by the reporting entity during the reporting period. Additional Paid in Capital Additional paid-in capital Mortgage Loans on Real Estate Interest Only Tennessee Maryland Pennsylvania and Texas Due 2016 [Member] Monthly interest-only payments, Tennessee, Maryland, Pennsylvania and Texas, due in 2016 This element represents the interest-only loan receivable secured by senior housing facilities in Tennessee, Maryland, Pennsylvania and Texas, with the final payment due in 2016. Monthly interest-only payments, Alabama, Arizona, Minnesota, Maryland, Texas and Wisconsin, due in 2016 Mortgage Loans on Real Estate Interest and Principal Alabama Arizona Minnesota Maryland Texas and Wisconsin Due 2016 [Member] This element represents the loan receivable secured by senior housing facilities in Alabama, Arizona, Minnesota, Maryland, Texas and Wisconsin, with the final payment due in 2016. Mortgage Loans on Real Estate Interest Only New Jersey and Pennsylvania, Due 2017 [Member] This element represents the interest-only loan receivable secured by senior housing facilities in New Jersey and Pennsylvania with the final payment due in 2017. Monthly interest-only payments, New Jersey and Pennsylvania, 2017 This element represents reversal of interest expense recognized for an underpayment of income taxes due to reversal of related unrecognized tax benefits. Unrecognized Tax Benefits Reversal of Interest on Income Taxes Expense Reversal of interest associated with unrecognized tax benefits Additional Paid-In Capital Additional Paid-in Capital [Member] Concentration of Risk Operator Revenues as Percentage of Segment Revenues Percentage of operator revenue to segment revenue after inclusion of revenue under RIDEA structure Percentage of operator revenue to segment revenue after inclusion of revenue under RIDEA structure. Concentration of Risk Operators Revenues as Percentage of Total Revenues Percentage of operator revenue to total entity revenue after inclusion of revenue under RIDEA structure Percentage of operator revenue to total entity revenue after inclusion of revenue under RIDEA structure. Percentage of operator assets to segment assets after inclusion of assets under RIDEA structure Percentage of operator assets to segment assets after inclusion of assets under RIDEA structure. Concentration of Risk Operator Assets as Percentage of Segment Assets Concentration of Risk Operator Assets as Percentage of Total Assets Percentage of operator assets to total entity assets after inclusion of assets under RIDEA structure Percentage of operator assets to total entity assets after inclusion of assets under RIDEA structure. Minimum Lease Revenue Rate of Increase Per Year Specified Term Rate of increase in minimum lease revenue per year over each of the next 3 years (as a percent) Rate of increase in minimum lease revenue per year on average over the initial 5 years of the lease (as a percent) Represents the rate of increase in minimum lease revenue per year over the specified term. Operating Leases Basis Spread on Variable Floor Rate Percentage of operating leases basis spread on variable floor rate Represents the percentage points added to the reference rate to compute the variable floor rate on the lessor's operating lease. Percentage of operating leases basis spread on variable cap rate Represents the percentage points added to the reference rate to compute the variable cap rate on the lessor's operating lease beginning the 6th year. Operating Leases Basis Spread on Variable Cap Rate Rate of increase in minimum lease revenue per year for remaining years of lease term (as a percent) Represents the rate of increase in minimum lease revenue per year over the remaining lease term. Minimum Lease Revenue Rate of Increase Per Year for Remaining Years of Lease Term Minimum Lease Revenue Rate of Increase Specified Term The remaining specified period of the initial lease term during which the minimum lease revenue increases by a specified percentage per year. Remaining specified period of the initial lease term during which the minimum lease revenue increases by a specified percentage per year Number of Asset Pools Number of asset pools Represents the number of asset pools under which properties are grouped. Minimum Lease Revenue Rate of Increase in Rent Receivable for First Year of Extension Option Represents the rate of increase in rent receivable for the first year of the extension option, expressed as a percentage of the rent for the prior year. Rate of increase in rent receivable for first year of extension option (as a percent) Number of properties operated pursuant to a new triple-net master lease Number of properties operated pursuant to a new triple-net master leases The number of properties operated pursuant to a triple-net master lease. Total initial available term of asset pools Represents the total available term of asset pools. Asset Pools Total Available Term Lease Term, Initial Initial term of lease Represents the initial term of the lease. Lease Term, Initial Asset Pools Initial Available Term Initial available term of asset pools Represents the initial available term of asset pools. Write-off of amounts previously capitalized as stock issuance cost in a redemption of stock. Write Off of Deferred Stock, Issuance Cost Preferred stock issuance costs write-off Represents information pertaining to Brookdale Senior Living, Inc. Brookdale [Member] Brookdale Brookdale Senior Living Preferred Stock, Redemption Shares Shares redeemed Number of redeemed preferred stock. Direct Financing Leases Accretion Expense DFL accretion Represents the expenses related to direct financing leases accretion. Represents the amount of fees paid on termination of lease. Lease Termination Fees Lease termination fees NOI adjustments related to discontinued operations Adjusted Net Operating Income from Discontinued Operations Represents the adjusted net operating income related to discontinued operations. Debt Instrument Floor on Variable Rate Debt instrument, variable rate floor (as a percent) The minimum rate allowed on the variable reference rate on the debt instrument. Loan Receivable Proceeds Settlement Cash payment received The amount of cash consideration the entity received in a settlement agreement, including funds that had been escrowed from past sales of the Guarantors. Loan Receivable Proceeds Settlement Other Other consideration received The amount of other consideration the entity received in a settlement agreement, including funds that had been escrowed from past sales of the guarantors. Income from continuing operations applicable to common shares Net Income (Loss) Continuing Operations, Available to Common Stockholders, Basic Income from continuing operations applicable to common shares Net income (loss) from continuing operations applicable to common shares. Distribution to Guarantor Distribution of fund to guarantor Distribution of funds generated from sales of assets that were pledged as additional collateral. Held To Maturity Securities Discounted Par Value Marketable debt security, par value, discounted This item represents the discounted par value of investments in debt securities which are categorized as held-to-maturity. Held To Maturity Securities Par Value This item represents the par value of investments in debt securities which are categorized as held-to-maturity. Marketable debt security, par value Derivative Instrument, Maturity Term Term of the interest rate swap agreement The term of a derivative instrument from the effective date until maturity. Reduction of Capital Leases Income Statement Direct Financing Lease Revenue Recharacterized DFL income to equity income Represents the reduction of income from direct financing leases resulting from equity method investment accounting. Debt Instrument, Issuance Price Percentage, of Principal Amount Debt issuance price as a percentage of principal amount Represents the debt instrument issuance price, expressed as a percentage of the principal amount of the debt instrument. Blackstone JV [Member] Blackstone JV Represents information pertaining to Blackstone JV, a joint venture between Emeritus Corporation and Blackstone Real Estate Partners VI, an affiliate of Blackstone. Investment Imputed Interest Effective Yield Interest Rate Yield on the investment, on which interest has been imputed, as calculated from its issuance value or purchase price. The calculated effective interest rate considers factors such as the issued face value or price paid for the investment, the time period between payments, and the time until maturity of the investment. Yield to maturity (as a percent) Number of Units in Real Estate Property as Percent Percentage of units of real estate property Represents the percentage of real estate property encompasses in portfolio acquired. Represents the cash inflow from sales of collateralized assets of borrower. Proceeds from Sale of Collateral Assets Proceeds from sale of collateral asset Represents the foreign currency swap entered in July 2012 with maturity in June 2016. Foreign Currency Swap Entered July 2012 Maturity June 2016 [Member] Currency swap, entered in July 2012, maturity in June 2016 Loan receivable subordinated to senior mortgage debt Loan Receivable Subordinated to Senior Mortgage Debt Represents the amount of the loan receivable subordinated to senior mortgage debt. Loan Receivable Subordinated to Senior Mezzanine Debt Represents the amount of the loan receivable subordinated to senior mezzanine debt. Loan receivable subordinated to other senior mezzanine debt Loan Receivable Maturity Term Loan receivable term Represents the maturity period of the loan receivable. Term of loan Area of Lease Extension Area of lease extension (in square feet) Represents the area of lease extension. Area of Real Estate to be Developed Area of building to be developed (in square feet) Represents the area of the real estate property to be developed. Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Real Estate Lease Term Real estate lease term Represents the period of real estate lease term. Represents the number of properties sold during the period, not categorized as discontinued operations. Disposition of Properties Sold Number Number of properties disposed Amortization of deferred compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Total Consideration for Disposition of Real Estate Total consideration for disposition of real estate Total consideration, cash and noncash, received by seller for the sale of real estate. Equity Method Investments, before Impairment Carrying value, equity method investments before impairment This element represents the carrying amount of equity method investments before making adjustment for the impairment. Term Loan 2012 [Member] 2012 Term Loan Represents the term loan executed July 2012. Schedule of Other Assets [Table] A table of carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. Schedule of Other Assets [Line Items] Other assets Percentage of Interest of Counter Party in Unconsolidated Joint Venture by which Loans Receivable are Secured Percentage of counter party's partnership interest in the joint venture, by which loans receivable from unconsolidated joint venture are secured Represents the percentage of counter party's partnership interest in the joint venture, by which loans receivable from unconsolidated joint venture are secured. Albuquerque 2120 NM [Member] 2120 Albuquerque NM Amarillo 2107 TX [Member] 2107 Amarillo TX Appleton 2072 WI [Member] 2072 Appleton WI Ashland 2130 OR [Member] 2130 Ashland OR Bedford 2075 TX [Member] 2075 Bedford TX Bridgeport 2117 WV [Member] 2117 Bridgeport WV Bridgeport 2125 WV [Member] 2125 Bridgeport WV Broken Arrow 2158 OK [Member] 2158 Broken Arrow OK 1256 Brooklyn NY Brooklyn 1256 NY [Member] Buford 2108 GA [Member] 2108 Buford GA Buford 2109 GA [Member] 2109 Buford GA Buford 2123 GA [Member] 2123 Buford GA Canton 2053 GA [Member] 2053 Canton GA Cedar City 2069 UT [Member] 2069 Cedar City UT Champlin 2143 MN [Member] 2143 Champlin MN Clearlake 2092 CA [Member] 2092 Clearlake CA Clifton Park 2177 NY [Member] 2177 Clifton Park NY Cody 2142 WY [Member] 2142 Cody WY College Place 2095 WA [Member] 2095 College Place WA Commerce 2155 GA [Member] 2155 Commerce GA Cordova 2132 TN [Member] 2132 Cordova TN Corona 2181 CA [Member] 2181 Corona CA Coyoacan 884 DF [Member] 884 Coyoacan DF Dallas 2164 TX [Member] 2164 Dallas TX Denver 2146 CO [Member] 2146 Denver CO Draper 2035 UT [Member] 2035 Draper UT Durham 2029 NC [Member] 2029 Durham NC Eagle Point 2103 OR [Member] 2103 Eagle Point OR Ellensburg 2172 WA [Member] 2172 Ellensburg WA Ellicott City 1213 MD [Member] 1213 Ellicott City MD Eugene 2098 OR [Member] 2098 Eugene OR Eugene 2104 OR [Member] 2104 Eugene OR Evanston 2038 WY [Member] 2038 Evanston WY Florence 2154 SC [Member] 2154 Florence SC 1078 Flowood MS Flowood 1078 MS [Member] Fortuna 2054 CA [Member] 2054 Fortuna CA Fortuna 2079 CA [Member] 2079 Fortuna CA Franklin 2060 TN [Member] 2060 Franklin TN Glastonbury 2085 CT [Member] 2085 Glastonbury CT Glastonbury 2144 CT [Member] 2144 Glastonbury CT Glendale 113 AZ [Member] 113 Glendale AZ Grants Pass 2136 OR [Member] 2136 Grants Pass OR Grants Pass 2137 OR [Member] 2137 Grants Pass OR Grants Pass 2138 OR [Member] 2138 Grants Pass OR Grants Pass 2145 OR [Member] 2145 Grants Pass OR Great Falls 2163 MT [Member] 2163 Great Falls MT Greece 2176 NY [Member] 2176 Greece NY Greece 2178 NY [Member] 2178 Greece NY Greenville 2059 SC [Member] 2059 Greenville SC Gresham 2139 OR [Member] 2139 Gresham OR Hartwell 2165 GA [Member] 2165 Hartwell GA Hendersonville 2100 TN [Member] 2100 Hendersonville TN Hilton Head Island 2099 SC [Member] 2099 Hilton Head Island SC Hilton Head Island 2111 SC [Member] 2111 Hilton Head Island SC Hilton Head Island 2112 SC [Member] 2112 Hilton Head Island SC Houston 2068 TX [Member] 2068 Houston TX Independence 2032 MO [Member] 2032 Independence MO Kansas City 2039 KS [Member] 2039 Kansas City KS Kearney 2080 NE [Member] 2080 Kearney NE Kenmore 2160 WA [Member] 2160 Kenmore WA Kerrville 2149 TX [Member] 2149 Kerrville TX Kingsport 2073 TN [Member] 2073 Kingsport TN Kokomo 2047 IN [Member] 2047 Kokomo IN La Jolla 1947 CA [Member] 1947 La Jolla CA La Jolla 1949 CA [Member] 1949 La Jolla CA Lake Worth 603 FL [Member] 603 Lake Worth FL Las Vegas 2110 NV [Member] 2110 Las Vegas NV Lawrenceville 2066 GA [Member] 2066 Lawrenceville GA Layton 2042 UT [Member] 2042 Layton UT 2140 Lebanon OR Lebanon 2140 OR [Member] Lexington 2169 NE [Member] 2169 Lexington NE Lithia Springs 2167 GA [Member] 2167 Lithia Springs GA Louisville 1105 KY [Member] 1105 Louisville KY Lubbock 2124 TX [Member] 2124 Lubbock TX Macon 2105 GA [Member] 2105 Macon GA Madison 2170 WI [Member] 2170 Madison WI Marietta 2156 GA [Member] 2156 Marietta GA Mc Cook 2168 NE [Member] 2168 Mc Cook NE McMinnville 2152 OR [Member] 2152 McMinnville OR McMinnville 2159 OR [Member] 2159 McMinnville OR Memphis 2071 TN [Member] 2071 Memphis TN Mesa 2040 AZ [Member] 2040 Mesa AZ Mesquite 2037 NV [Member] 2037 Mesquite NV Minot 2127 ND [Member] 2127 Minot ND Monmouth 2090 OR [Member] 2090 Monmouth OR Monmouth 2106 OR [Member] 2106 Monmouth OR Montrose 2091 CO [Member] 2091 Montrose CO Mooresville 2126 NC [Member] 2126 Mooresville NC 2141 Moses Lake WA Moses Lake 2141 WA [Member] Murray 2115 KY [Member] 2115 Murray KY Muskogee 2122 OK [Member] 2122 Muskogee OK Nashville 2094 TN [Member] 2094 Nashville TN Newberg 2089 OR [Member] 2089 Newberg OR 2086 Newnan GA Newnan 2086 GA [Member] North Richland Hills 2048 TX [Member] 2048 North Richland Hills TX North Richland Hills 2113 TX [Member] 2113 North Richland Hills TX Oklahoma City 2082 OK [Member] 2082 Oklahoma City OK Oklahoma City 2083 OK [Member] 2083 Oklahoma City OK Orchard Park 2174 NY [Member] 2174 Orchard Park NY Orchard Park 2175 NY [Member] 2175 Orchard Park NY Overland Park 2043 KS [Member] 2043 Overland Park KS Oxford 2074 MS [Member] 2074 Oxford MS Total share-based compensation expense recognized Allocated Share-based Compensation Expense Paducah 2135 KY [Member] 2135 Paducah KY Pikesville 1011 MD [Member] 1011 Pikesville MD Plano 2064 TX [Member] 2064 Plano TX Portland 2133 OR [Member] 2133 Portland OR Portland 2151 OR [Member] 2151 Portland OR Portland 2162 TX [Member] 2162 Portland TX Portland 2171 OR [Member] 2171 Portland OR Poulsbo 2096 WA [Member] 2096 Poulsbo WA Poway 1472 CA [Member] 1472 Poway CA Prescott 2087 AZ [Member] 2087 Prescott AZ Redmond 2050 OR [Member] 2050 Redmond OR Richland 2102 WA [Member] 2102 Richland WA Rio Rancho 2161 NM [Member] 2161 Rio Rancho NM Rock Hill 2076 SC [Member] 2076 Rock Hill SC Rock Hill 2093 SC [Member] 2093 Rock Hill SC Roseburg 2084 OR [Member] 2084 Roseburg OR Roseville 2065 CA [Member] 2065 Roseville CA Roswell 2121 NM [Member] 2121 Roswell NM Roswell 2150 NM [Member] 2150 Roswell NM Salt Lake City 2041 UT [Member] 2041 Salt Lake City UT San Diego 1418 CA [Member] 1418 San Diego CA San Diego 1421 CA [Member] 1421 San Diego CA San Diego 1422 CA [Member] 1422 San Diego CA San Diego 1423 CA [Member] 1423 San Diego CA San Diego 1514 CA [Member] 1514 San Diego CA San Diego 234 CA [Member] 234 San Diego CA Schedule of reconciliation of the allowance Allowance for Credit Losses on Financing Receivables [Table Text Block] Sandy 2033 UT [Member] 2033 Sandy UT Scappoose 2134 OR [Member] 2134 Scappoose OR Accounts receivable, allowance (in dollars) Allowance for Doubtful Accounts, Premiums and Other Receivables Scappoose 2153 OR [Member] 2153 Scappoose OR Scottsdale 2021 AZ [Member] 2021 Scottsdale AZ Scottsdale 2022 AZ [Member] 2022 Scottsdale AZ Scottsdale 2023 AZ [Member] 2023 Scottsdale AZ Scottsdale 2024 AZ [Member] 2024 Scottsdale AZ Scottsdale 2025 AZ [Member] 2025 Scottsdale AZ Scottsdale 2026 AZ [Member] 2026 Scottsdale AZ Scottsdale 2027 AZ [Member] 2027 Scottsdale AZ Scottsdale 2028 AZ [Member] 2028 Scottsdale AZ Selinsgrove 2063 PA [Member] 2063 Selinsgrove PA Seward 2129 NE [Member] 2129 Seward NE Sheridan 2148 WY [Member] 2148 Sheridan WY Sherman 2116 TX [Member] 2116 Sherman TX Sherwood 126 AR [Member] 126 Sherwood AR Sioux City 2166 IA [Member] 2166 Sioux City IA Slidell 2031 LA [Member] 2031 Slidell LA Spokane 2097 WA [Member] 2097 Spokane WA Springfield 2051 OR [Member] 2051 Springfield OR Springfield 2057 OR [Member] 2057 Springfield OR Stayton 2056 OR [Member] 2056 Stayton OR Stayton 2058 OR [Member] 2058 Stayton OR Sterling 2077 VA [Member] 2077 Sterling VA Stone Mountain 2147 GA [Member] 2147 Stone Mountain GA Tahlequah 2070 OK [Member] 2070 Tahlequah OK Tualatin 2088 OR [Member] 2088 Tualatin OR Vancouver 2061 WA [Member] 2061 Vancouver WA Vancouver 2062 WA [Member] 2062 Vancouver WA Wayne 2119 NE [Member] 2119 Wayne NE Provision for loan loss Provision for losses (impairment) Allowance for Loan and Lease Losses, Period Increase (Decrease) West Columbia 2067 SC [Member] 2067 West Columbia SC West Jordan 2034 UT [Member] 2034 West Jordan UT West Jordan 2036 UT [Member] 2036 West Jordan UT Reconciliation of beginning and ending allowance Allowance for Loan and Lease Losses [Roll Forward] Reconciliation of the allowance for the losses West Valley City 349 UT [Member] 349 West Valley City UT West Valley City 495 UT [Member] 495 West Valley City UT Woodstock 2118 GA [Member] 2118 Woodstock GA Woodstock 2157 GA [Member] 2157 Woodstock GA Yakima 2052 WA [Member] 2052 Yakima WA Yakima 2078 WA [Member] 2078 Yakima WA Yakima 2114 WA [Member] 2114 Yakima WA Yreka 2055 CA [Member] 2055 Yreka CA Huntsville 1107 AL [Member] 1107 Huntsville AL Little Rock 1154 AR [Member] 1154 Little Rock AR Douglas 786 AZ [Member] 786 Douglas AZ Tucson 518 AZ [Member] 518 Tucson AZ Sun City 1974 AZ [Member] 1974 Sun City AZ Beverly Hills 1238 CA [Member] 1238 Beverly Hills CA Camarillo 1149 CA [Member] 1149 Camarillo CA Carlsbad 1006 CA [Member] 1006 Carlsbad CA Carmichael 883 CA [Member] 883 Carmichael CA Citrus Heights 851 CA [Member] 851 Citrus Heights CA 790 Concord CA Concord 790 CA [Member] Dana Point 787 CA [Member] 787 Dana Point CA Elk Grove 1152 CA [Member] 1152 Elk Grove CA Escondido 798 CA [Member] 798 Escondido CA Fremont 791 CA [Member] 791 Fremont CA Fresno 1965 CA [Member] 1965 Fresno CA Granada Hills 788 CA [Member] 788 Granada Hills CA 1156 Hemet CA Hemet 1156 CA [Member] Irvine 856 CA [Member] 856 Irvine CA Lodi 227 CA [Member] 227 Lodi CA Murietta 226 CA [Member] 226 Murietta CA Northridge 1165 CA [Member] 1165 Northridge CA Orangevale 1561 CA [Member] 1561 Orangevale CA Palm Springs 1168 CA [Member] 1168 Palm Springs CA Pleasant Hill 789 CA [Member] 789 Pleasant Hill CA Rancho Mirage 1166 CA [Member] 1166 Rancho Mirage CA San Diego 1008 CA [Member] 1008 San Diego CA San Dimas 1007 CA [Member] 1007 San Dimas CA San Juan Capistrano 1009 CA [Member] 1009 San Juan Capistrano CA Santa Rosa 1167 CA [Member] 1167 Santa Rosa CA South San Francisco 793 CA [Member] 793 South San Francisco CA Sun City 1966 CA [Member] 1966 Sun City CA Ventura 792 CA [Member] 792 Ventura CA Yorba Linda 1155 CA [Member] 1155 Yorba Linda CA Colorado Springs 1232 CO [Member] 1232 Colorado Springs CO Denver 512 CO [Member] 512 Denver CO Denver 1233 CO [Member] 1233 Denver CO Greenwood Village 1000 CO [Member] 1000 Greenwood Village CO Lakewood 1234 CO [Member] 1234 Lakewood CO Torrington 730 CT [Member] 730 Torrington CT Woodbridge 1010 CT [Member] 1010 Woodbridge CT Altamonte Springs 538 FL [Member] 538 Altamonte Springs FL Amortization of above and below market lease intangibles, net Amortization of above and below Market Leases Apopka 861 FL [Member] 861 Apopka FL Boca Raton 852 FL [Member] 852 Boca Raton FL Boca Raton 1001 FL [Member] 1001 Boca Raton FL Amortization of deferred financing costs, net Amortization of Financing Costs and Discounts Boynton Beach 544 FL [Member] 544 Boynton Beach FL Boynton Beach 1963 FL [Member] 1963 Boynton Beach FL Boynton Beach 1964 FL [Member] 1964 Boynton Beach FL Clearwater 539 FL [Member] 539 Clearwater FL Clearwater 746 FL [Member] 746 Clearwater FL Clermont 862 FL [Member] 862 Clermont FL Coconut Creek 1002 FL [Member] 1002 Coconut Creek FL Delray Beach 492 FL [Member] 492 Delray Beach FL Gainesville 850 FL [Member] 850 Gainesville FL Gainesville 1095 FL [Member] 1095 Gainesville FL Jacksonville 490 FL [Member] 490 Jacksonville FL Jacksonville 1096 FL [Member] 1096 Jacksonville FL Lantana 855 FL [Member] 855 Lantana FL Largo 1968 FL [Member] 1968 Largo FL Ocoee 731 FL [Member] 731 Ocoee FL Oviedo 859 FL [Member] 859 Oviedo FL Palm Beach Gardens 1970 FL [Member] 1970 Palm Beach Gardens FL Palm Harbor 1017 FL [Member] 1017 Palm Harbor FL Port Orange 732 FL [Member] 732 Port Orange FL Sarasota 1971 FL [Member] 1971 Sarasota FL Sun City Center 692 FL [Member] 692 Sun City Center FL Sun City Center 698 FL [Member] 698 Sun City Center FL Tallahassee 1097 FL [Member] 1097 Tallahassee FL Tampa 224 FL [Member] 224 Tampa FL Tampa 849 FL [Member] 849 Tampa FL Vero Beach 1257 FL [Member] 1257 Vero Beach FL Vero Beach 1605 FL [Member] 1605 Vero Beach FL 1976 West Palm Beach FL West Palm Beach 1976 FL [Member] Antidilutive Securities [Axis] Alpharetta 1098 GA [Member] 1098 Alpharetta GA Atlanta 1099 GA [Member] 1099 Atlanta GA Earnings per common share: Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Atlanta 1169 GA [Member] 1169 Atlanta GA Antidilutive Securities, Name [Domain] Lilburn 1241 GA [Member] 1241 Lilburn GA Shares of anti-dilutive securities excluded from earnings per share calculation Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Marietta 1112 GA [Member] 1112 Marietta GA Davenport 1088 IA [Member] 1088 Davenport IA Marion 1093 IA [Member] 1093 Marion IA Bloomington 1091 IL [Member] 1091 Bloomington IL Burr Ridge 1587 IL [Member] 1587 Burr Ridge IL Champaign 1089 IL [Member] 1089 Champaign IL Hoffman Estates 1157 IL [Member] 1157 Hoffman Estates IL Macomb 1090 IL [Member] 1090 Macomb IL 1969 Niles IL Niles 1969 IL [Member] Oak Park 1005 IL [Member] 1005 Oak Park IL Olympia Fields 1961 IL [Member] 1961 Olympia Fields IL Orland Park 1162 IL [Member] 1162 Orland Park IL Peoria 1092 IL [Member] 1092 Peoria IL Prospect Heights 1588 IL [Member] 1588 Prospect Heights IL Vernon Hills 1952 IL [Member] 1952 Vernon Hills IL Wilmette 1237 IL [Member] 1237 Wilmette IL Evansville 379 IN [Member] 379 Evansville IN Jasper 457 IN [Member] 457 Jasper IN Indianapolis 1144 IN [Member] 1144 Indianapolis IN Indianapolis 1145 IN [Member] 1145 Indianapolis IN West Lafayette 1146 IN [Member] 1146 West Lafayette IN Edgewood 1170 KY [Member] 1170 Edgewood KY Lexington 697 KY [Member] 697 Lexington KY Danvers 1013 MA [Member] 1013 Danvers MA Impairments (recoveries) Impairments (recoveries) Impairments Asset Impairment Charges Dartmouth 1151 MA [Member] 1151 Dartmouth MA Dedham 1012 MA [Member] 1012 Dedham MA Plymouth 1158 MA [Member] 1158 Plymouth MA Baltimore 1153 MD [Member] 1153 Baltimore MD Frederick 1249 MD [Member] 1249 Frederick MD Westminster 281 MD [Member] 281 Westminster MD Cape Elizabeth 546 ME [Member] 546 Cape Elizabeth ME Saco 545 ME [Member] 545 Saco ME Auburn Hills 1258 MI [Member] 1258 Auburn Hills MI Farmington Hills 1248 MI [Member] 1248 Farmington Hills MI Holland 696 MI [Member] 696 Holland MI Portage 1094 MI [Member] 1094 Portage MI Sterling Heights 472 MI [Member] 472 Sterling Heights MI Sterling Heights 1259 MI [Member] 1259 Sterling Heights MI Des Peres 1235 MO [Member] 1235 Des Peres MO Impairments Asset Impairment Charges [Text Block] Richmond Heights 1236 MO [Member] 1236 Richmond Heights MO Great Falls 842 MT [Member] 842 Great Falls MT Charlotte 878NC [Member] 878 Charlotte NC Charlotte 1584 NC [Member] 1584 Charlotte NC Concord 1119 NC [Member] 1119 Concord NC Raleigh 1254 NC [Member] 1254 Raleigh NC Cherry Hill 1599 NJ [Member] 1599 Cherry Hill NJ Cresskill 1239 NJ [Member] 1239 Cresskill NJ Hillsborough 734 NJ [Member] 734 Hillsborough NJ Madison 1242 NJ [Member] 1242 Madison NJ Manahawkin 733 NJ [Member] 733 Manahawkin NJ Paramus 1014 NJ [Member] 1014 Paramus NJ Saddle River 1231 NJ [Member] 1231 Saddle River NJ Voorhees Township 245 NJ [Member] 245 Voorhees Township NJ Albuquerque 213 NM [Member] 213 Albuquerque NM Las Vegas 796 NV [Member] 796 Las Vegas NV Brooklyn 1252 NY [Member] 1252 Brooklyn NY Cincinnati 473 OH [Member] 473 Cincinnati OH Columbus 841 OH [Member] 841 Columbus OH Fairborn 857 OH [Member] 857 Fairborn OH Fairborn 1147 OH [Member] 1147 Fairborn OH Marietta 1386 OH [Member] 1386 Marietta OH Poland 1253 OH [Member] 1253 Poland OH Total fair value assets and liabilities measured on recurring basis Assets, Net Willoughby 1159 OH [Member] 1159 Willoughby OH Oklahoma City 1171 OK [Member] 1171 Oklahoma City OK Tulsa 1160 OK [Member] 1160 Tulsa OK Cumberland 1967 RI [Member] 1967 Cumberland RI 1959 East Providence RI East Providence 1959 RI [Member] Greenwich 1960 RI [Member] 1960 Greenwich RI Total assets Total assets (1) Assets Smithfield 1972 RI [Member] 1972 Smithfield RI South Kingstown 1973 RI [Member] 1973 South Kingstown RI Tiverton 1975 RI [Member] 1975 Tiverton RI Warwick 1962 RI [Member] 1962 Warwick RI Haverford 1163 PA [Member] 1163 Haverford PA Aiken 1104 SC [Member] 1104 Aiken SC Charleston 1100 SC [Member] 1100 Charleston SC Columbia 1109 SC [Member] 1109 Columbia SC Georgetown 306 SC [Member] 306 Georgetown SC Greenville 879 SC [Member] 879 Greenville SC Greenville 1172 SC [Member] 1172 Greenville SC Lancaster 305 SC [Member] 305 Lancaster SC Myrtle Beach 880 SC [Member] 880 Myrtle Beach SC Rock Hill 312 SC [Member] 312 Rock Hill SC Rock Hill 1113 SC [Member] 1113 Rock Hill SC Sumter 313 SC [Member] 313 Sumter SC Nashville 1003 TN [Member] 1003 Nashville TN Oak Ridge 860 TN [Member] 860 Oak Ridge TN Abilene 843 TX [Member] 843 Abilene TX Arlington 1004 TX [Member] 1004 Arlington TX Arlington 1116 TX [Member] 1116 Arlington TX Austin 511 TX [Member] 511 Austin TX Austin 1589 TX [Member] 1589 Austin TX Beaumont 202 TX [Member] 202 Beaumont TX Burleson 844 TX [Member] 844 Burleson TX Cedar Hill 848 TX [Member] 848 Cedar Hill TX Cedar Hill 1325 TX [Member] 1325 Cedar Hill TX Fort Worth 513 TX [Member] 513 Fort Worth TX Friendswood 506 TX [Member] 506 Friendswood TX ASSETS Assets [Abstract] Houston 217 TX [Member] 217 Houston TX Total Assets Assets, Total [Member] Houston 491 TX [Member] 491 Houston TX Houston 1106 TX [Member] 1106 Houston TX Houston 1111 TX [Member] 1111 Houston TX Houston 1955 TX [Member] 1955 Houston TX Houston 1957 TX [Member] 1957 Houston TX Houston 1958 TX [Member] 1958 Houston TX Irving 820 TX [Member] 820 Irving TX North Richland Hills 845 TX [Member] 845 North Richland Hills TX North Richland Hills 846 TX [Member] 846 North Richland Hills TX Plano 1102 TX [Member] 1102 Plano TX San Antonio 494 TX [Member] 494 San Antonio TX San Antonio 1590 TX [Member] 1590 San Antonio TX Sugar Land 1954 TX [Member] 1954 Sugar Land TX The Woodlands 1103 TX [Member] 1103 The Woodlands TX Victoria 195 TX [Member] 195 Victoria TX Waxahachie 847 TX [Member] 847 Waxahachie TX Webster 1953 TX [Member] 1953 Webster TX Salt Lake City 1161 UT [Member] 1161 Salt Lake City UT Arlington 1015 VA [Member] 1015 Arlington VA Arlington 1244 VA [Member] 1244 Arlington VA Arlington 1245 VA [Member] 1245 Arlington VA Chesapeake 881 VA [Member] 881 Chesapeake VA Falls Church 1247 VA [Member] 1247 Falls Church VA Fort Belvoir 1164 VA [Member] 1164 Fort Belvoir VA Leesburg 1250 VA [Member] 1250 Leesburg VA Richmond 1016 VA [Member] 1016 Richmond VA Sterling 1246 VA [Member] 1246 Sterling VA Woodbridge 225 VA [Member] 225 Woodbridge VA Bellevue 1173 WA [Member] 1173 Bellevue WA Edmonds 1240 WA [Member] 1240 Edmonds WA Kirkland 797 WA [Member] 797 Kirkland WA Lynnwood 1174 WA [Member] 1174 Lynnwood WA Mercer Island 1251 WA [Member] 1251 Mercer Island WA Shoreline 794 WA [Member] 794 Shoreline WA Shoreline 795 WA [Member] 795 Shoreline WA Snohomish 1175 WA [Member] 1175 Snohomish WA Brisbane 1482 CA [Member] 1482 Brisbane CA Carlsbad 1481 CA [Member] 1481 Carlsbad CA Carlsbad 1522 CA [Member] 1522 Carlsbad CA Hayward 1401 CA [Member] 1401 Hayward CA Assets held for sale, net Real estate assets held for sale, net Carrying value of properties classified as held for sale Assets Held-for-sale, at Carrying Value Hayward 1402 CA [Member] 1402 Hayward CA Hayward 1403 CA [Member] 1403 Hayward CA Hayward 1404 CA [Member] 1404 Hayward CA Hayward 1405 CA [Member] 1405 Hayward CA Hayward 1549 CA [Member] 1549 Hayward CA Hayward 1550 CA [Member] 1550 Hayward CA Hayward 1551 CA [Member] 1551 Hayward CA Hayward 1552 CA [Member] 1552 Hayward CA Hayward 1553 CA [Member] 1553 Hayward CA Hayward 1554 CA [Member] 1554 Hayward CA Hayward 1555 CA [Member] 1555 Hayward CA Hayward 1556 CA [Member] 1556 Hayward CA La Jolla 1424 CA [Member] 1424 La Jolla CA La Jolla 1425 CA [Member] 1425 La Jolla CA La Jolla 1426 CA [Member] 1426 La Jolla CA La Jolla 1427 CA [Member] 1427 La Jolla CA Mountain View 1488 CA [Member] 1488 Mountain View CA Mountain View 1489 CA [Member] 1489 Mountain View CA Mountain View 1490 CA [Member] 1490 Mountain View CA Mountain View 1491 CA [Member] 1491 Mountain View CA Mountain View 1492 CA [Member] 1492 Mountain View CA Mountain View 1493 CA [Member] 1493 Mountain View CA Mountain View 1494 CA [Member] 1494 Mountain View CA 1495 Mountain View CA Mountain View 1495 CA [Member] Mountain View 1496 CA [Member] 1496 Mountain View CA Mountain View 1497 CA [Member] 1497 Mountain View CA Mountain View 1498 CA [Member] 1498 Mountain View CA Mountain View 2017 CA [Member] 2017 Mountain View CA Poway 1477 CA [Member] 1477 Poway CA Poway 1470 CA [Member] 1470 Poway CA Poway 1471 CA [Member] 1471 Poway CA Poway 1478 CA [Member] 1478 Poway CA Redwood City 1499 CA [Member] 1499 Redwood City CA Redwood City 1500 CA [Member] 1500 Redwood City CA Redwood City 1501 CA [Member] 1501 Redwood City CA Redwood City 1502 CA [Member] 1502 Redwood City CA Redwood City 1503 CA [Member] 1503 Redwood City CA Redwood City 1504 CA [Member] 1504 Redwood City CA Redwood City 1505 CA [Member] 1505 Redwood City CA Redwood City 1506 CA [Member] 1506 Redwood City CA Redwood City 1507 CA [Member] 1507 Redwood City CA Redwood City 1508 CA [Member] 1508 Redwood City CA Redwood City 1509 CA [Member] 1509 Redwood City CA Redwood City 1510 CA [Member] 1510 Redwood City CA Redwood City 1511 CA [Member] 1511 Redwood City CA Redwood City 1512 CA [Member] 1512 Redwood City CA Redwood City 1513 CA [Member] 1513 Redwood City CA San Diego 679 CA [Member] 679 San Diego CA San Diego 1558 CA [Member] 1558 San Diego CA San Diego 837 CA [Member] 837 San Diego CA San Diego 838 CA [Member] 838 San Diego CA San Diego 839 CA [Member] 839 San Diego CA San Diego 840 CA [Member] 840 San Diego CA San Diego 1420 CA [Member] 1420 San Diego CA SanDiego 1948 CA [Member] 1948 San Diego CA San Diego 1950 CA [Member] 1950 San Diego CA South San Francisco 1410 CA [Member] 1410 South San Francisco CA South San Francisco 1411 CA [Member] 1411 South San Francisco CA South San Francisco 1413 CA [Member] 1413 South San Francisco CA 1414 South San Francisco CA South San Francisco 1414 CA [Member] South San Francisco 1431 CA [Member] 1431 South San Francisco CA South San Francisco 1439 CA [Member] 1439 South San Francisco CA South San Francisco 1440 CA [Member] 1440 South San Francisco CA South San Francisco 1441 CA [Member] 1441 South San Francisco CA South San Francisco 1442 CA [Member] 1442 South San Francisco CA South San Francisco 1443 CA [Member] 1443 South San Francisco CA South San Francisco 1444 CA [Member] 1444 South San Francisco CA South San Francisco 1445 CA [Member] 1445 South San Francisco CA South San Francisco 1448 CA [Member] 1448 South San Francisco CA South San Francisco 1449 CA [Member] 1449 South San Francisco CA South San Francisco 1450 CA [Member] 1450 South San Francisco CA South San Francisco 1451 CA [Member] 1451 South San Francisco CA South San Francisco 1452 CA [Member] 1452 South San Francisco CA South San Francisco 1458 CA [Member] 1458 South San Francisco CA South San Francisco 1459 CA [Member] 1459 South San Francisco CA South San Francisco 1460 CA [Member] 1460 South San Francisco CA South San Francisco 1461 CA [Member] 1461 South San Francisco CA South San Francisco 1462 CA [Member] 1462 South San Francisco CA South San Francisco 1464 CA [Member] 1464 South San Francisco CA South San Francisco 1468 CA [Member] 1468 South San Francisco CA South San Francisco 1454 CA [Member] 1454 South San Francisco CA South San Francisco 1455 CA [Member] 1455 South San Francisco CA South San Francisco 1456 CA [Member] 1456 South San Francisco CA South San Francisco 1480 CA [Member] 1480 South San Francisco CA South San Francisco 1463 CA [Member] 1463 South San Francisco CA South San Francisco 1435 CA [Member] 1435 South San Francisco CA South San Francisco 1436 CA [Member] 1436 South San Francisco CA South San Francisco 1437 CA [Member] 1437 South San Francisco CA South San Francisco 1559 CA [Member] 1559 South San Francisco CA South San Francisco 1560 CA [Member] 1560 South San Francisco CA South San Francisco 1408 CA [Member] 1408 South San Francisco CA South San Francisco 1412 CA [Member] 1412 South San Francisco CA South San Francisco 1430 CA [Member] 1430 South San Francisco CA South San Francisco 1409 CA [Member] 1409 South San Francisco CA South San Francisco 1407 CA [Member] 1407 South San Francisco CA South San Francisco 1982 CA [Member] 1982 South San Francisco CA Cambridge 1604 MA [Member] 1604 Cambridge MA Durham 2011 NC [Member] 2011 Durham NC Salt Lake City 461 UT [Member] 461 Salt Lake City UT Salt Lake City 462 UT [Member] 462 Salt Lake City UT Salt Lake City 463 UT [Member] 463 Salt Lake City UT Salt Lake City 464 UT [Member] 464 Salt Lake City UT Salt Lake City 465 UT [Member] 465 Salt Lake City UT Salt Lake City 466 UT [Member] 466 Salt Lake City UT Salt Lake City 507 UT [Member] 507 Salt Lake City UT Salt Lake City 537 UT [Member] 537 Salt Lake City UT Salt Lake City 799 UT [Member] 799 Salt Lake City UT Salt Lake City 1593 UT [Member] 1593 Salt Lake City UT Cost basis of marketable equity securities Available-for-sale Equity Securities, Amortized Cost Basis Anchorage 638 AK [Member] 638 Anchorage AK Chandler 520 AZ [Member] 520 Chandler AZ Oro Valley 468 AZ [Member] 468 Oro Valley AZ Phoenix 356 AZ [Member] 356 Phoenix AZ Phoenix 470 AZ [Member] 470 Phoenix AZ Scottsdale 1066 AZ [Member] 1066 Scottsdale AZ Tucson 453 AZ [Member] 453 Tucson AZ Marketable equity securities Available-for-sale Securities Tucson 556 AZ [Member] 556 Tucson AZ Brentwood 1041 CA [Member] 1041 Brentwood CA Encino 1200 CA [Member] 1200 Encino CA Murietta 436 CA [Member] 436 Murietta CA Poway 239 CA [Member] 239 Poway CA Sacramento 318 CA [Member] 318 Sacramento CA San Diego 235 CA [Member] 235 San Diego CA San Diego 236 CA [Member] 236 San Diego CA San Diego 421 CA [Member] 421 San Diego CA San Jose 564 CA [Member] 564 San Jose CA San Jose 565 CA [Member] 565 San Jose CA San Jose 659 CA [Member] 659 San Jose CA Sherman Oaks 1209 CA [Member] 1209 Sherman Oaks CA Valencia 439 CA [Member] 439 Valencia CA Valencia 1211 CA [Member] 1211 Valencia CA West Hills 440 CA [Member] 440 West Hills CA Aurora 728 CO [Member] 728 Aurora CO Aurora 1196 CO [Member] 1196 Aurora CO Aurora 1197 CO [Member] 1197 Aurora CO Colorado Springs 882 CO [Member] 882 Colorado Springs CO Conifer 814 CO [Member] 814 Conifer CO Denver 1199 CO [Member] 1199 Denver CO Englewood 808 CO [Member] 808 Englewood CO Englewood 809 CO [Member] 809 Englewood CO Englewood 810 CO [Member] 810 Englewood CO Englewood 811 CO [Member] 811 Englewood CO Littleton 812 CO [Member] 812 Littleton CO Littleton 813 CO [Member] 813 Littleton CO Lone Tree 570 CO [Member] 570 Lone Tree CO Lone Tree 666 CO [Member] 666 Lone Tree CO Parker 1076 CO [Member] 1076 Parker CO Thornton 510 CO [Member] 510 Thornton CO Atlantis 433 FL [Member] 433 Atlantis FL Atlantis 434 FL [Member] 434 Atlantis FL Atlantis 435 FL [Member] 435 Atlantis FL Atlantis 602 FL [Member] 602 Atlantis FL 604 Englewood FL Englewood 604 FL [Member] Kissimmee 609 FL [Member] 609 Kissimmee FL Kissimmee 610 FL [Member] 610 Kissimmee FL Kissimmee 671 FL [Member] 671 Kissimmee FL Margate 612 FL [Member] 612 Margate FL Miami 613 FL [Member] 613 Miami FL Milton 1067 FL [Member] 1067 Milton FL Orlando 563 FL [Member] 563 Orlando FL Pace 833 FL [Member] 833 Pace FL Pensacola 834 FL [Member] 834 Pensacola FL Plantation 614 FL [Member] 614 Plantation FL Plantation 673 FL [Member] 673 Plantation FL Tampa 1210 FL [Member] 1210 Tampa FL McCaysville 1058 GA [Member] 1058 McCaysville GA Marion 1065 IL [Member] 1065 Marion IL Newburgh 1057 IN [Member] 1057 Newburgh IN Wichita 483 KS [Member] 483 Wichita KS Lexington 1064 KY [Member] 1064 Lexington KY Louisville 735 KY [Member] 735 Louisville KY 737 Louisville KY Louisville 737 KY [Member] Louisville 738 KY [Member] 738 Louisville KY Louisville 739 KY [Member] 739 Louisville KY 740 Louisville KY Louisville 740 KY [Member] Louisville 1944 KY [Member] 1944 Louisville KY Louisville 1945 KY [Member] 1945 Louisville KY Realized gains on marketable debt securities sold Available-for-sale Securities, Gross Realized Gains 1946 Louisville KY Louisville 1946 KY [Member] Haverhill 1324 MA [Member] 1324 Haverhill MA Glen Burnie 361 MD [Member] 361 Glen Burnie MD Towson 1052 MD [Member] 1052 Towson MD Minneapolis 240 MN [Member] 240 Minneapolis MN Minneapolis 300 MN [Member] 300 Minneapolis MN Jackson 1059 MS [Member] 1059 Jackson MS Jackson 1060 MS [Member] 1060 Jackson MS Omaha 1068 NE [Member] 1068 Omaha NE Albuquerque 729 NM [Member] 729 Albuquerque NM Elko 348 NV [Member] 348 Elko NV Las Vegas 571 NV [Member] 571 Las Vegas NV Las Vegas 660 NV [Member] 660 Las Vegas NV Las Vegas 661 NV [Member] 661 Las Vegas NV Las Vegas 662 NV [Member] 662 Las Vegas NV Las Vegas 663 NV [Member] 663 Las Vegas NV Las Vegas 664 NV [Member] 664 Las Vegas NV Las Vegas 691 NV [Member] 691 Las Vegas NV Cleveland 1285 OH [Member] 1285 Cleveland OH Harrison 400 OH [Member] 400 Harrison OH Durant 1054 OK [Member] 1054 Durant OK Owasso 817 OK [Member] 817 Owasso OK Roseburg 404 OR [Member] 404 Roseburg OR Clarksville 252 TN [Member] 252 Clarksville TN Hendersonville 624 TN [Member] 624 Hendersonville TN Hermitage 559 TN [Member] 559 Hermitage TN Hermitage 561 TN [Member] 561 Hermitage TN Hermitage 562 TN [Member] 562 Hermitage TN Knoxville 154 TN [Member] 154 Knoxville TN Nashville 625 TN [Member] 625 Nashville TN Nashville 626 TN [Member] 626 Nashville TN Nashville 627 TN [Member] 627 Nashville TN Nashville 628 TN [Member] 628 Nashville TN Nashville 630 TN [Member] 630 Nashville TN Nashville 631 TN [Member] 631 Nashville TN Nashville 632 TN [Member] 632 Nashville TN Nashville 633 TN [Member] 633 Nashville TN Nashville 634 TN [Member] 634 Nashville TN Nashville 636 TN [Member] 636 Nashville TN Arlington 573 TX [Member] 573 Arlington TX Conroe 576 TX [Member] 576 Conroe TX Conroe 577 TX [Member] 577 Conroe TX Conroe 578 TX [Member] 578 Conroe TX Conroe 579 TX [Member] 579 Conroe TX Corpus Christi 581 TX [Member] 581 Corpus Christi TX Corpus Christi 600 TX [Member] 600 Corpus Christi TX Corpus Christi 601 TX [Member] 601 Corpus Christi TX Dallas 582 TX [Member] 582 Dallas TX Dallas 1314 TX [Member] 1314 Dallas TX Fort Worth 583 TX [Member] 583 Fort Worth TX Fort Worth 805 TX [Member] 805 Fort Worth TX Below market leases, Gross intangible lease liabilities Below Market Lease, Gross Fort Worth 806 TX [Member] 806 Fort Worth TX Granbury 1061 TX [Member] 1061 Granbury TX Houston 430 TX [Member] 430 Houston TX Houston 446 TX [Member] 446 Houston TX Houston 586 TX [Member] 586 Houston TX Houston 589 TX [Member] 589 Houston TX Houston 670 TX [Member] 670 Houston TX Houston 702 TX [Member] 702 Houston TX Houston 1044 TX [Member] 1044 Houston TX Irving 590 TX [Member] 590 Irving TX Irving 700 TX [Member] 700 Irving TX Irving 1202 TX [Member] 1202 Irving TX Irving 1207 TX [Member] 1207 Irving TX Lancaster 1062 TX [Member] 1062 Lancaster TX Lewisville 591 TX [Member] 591 Lewisville TX Longview 144 TX [Member] 144 Longview TX Lufkin 143 TX [Member] 143 Lufkin TX Mc Kinney 568 TX [Member] 568 McKinney TX Mc Kinney 569 TX [Member] 569 McKinney TX Nassau Bay 596 TX [Member] 596 Nassau Bay TX North Richland Hills 1079 TX [Member] 1079 North Richland Hills TX Pearland 1048 TX [Member] 1048 Pearland TX Plano 447 TX [Member] 447 Plano TX Plano 597 TX [Member] 597 Plano TX Plano 672 TX [Member] 672 Plano TX Plano 1284 TX [Member] 1284 Plano TX 1286 Plano TX Plano 1286 TX [Member] San Antonio 815 TX [Member] 815 San Antonio TX San Antonio 816 TX [Member] 816 San Antonio TX Sugarland 598 TX [Member] 598 Sugarland TX Texarkana 1081 TX [Member] 1081 Texarkana TX Texas City 599 TX [Member] 599 Texas City TX Victoria 152 TX [Member] 152 Victoria TX San Antonio 1591 TX [Member] 1591 San Antonio TX San Antonio 1977 TX [Member] 1977 San Antonio TX Bountiful 1592 UT [Member] 1592 Bountiful UT Bountiful 169 UT [Member] 169 Bountiful UT Castle Dale 346 UT [Member] 346 Castle Dale UT Centerville 347 UT [Member] 347 Centerville UT Grantsville 350 UT [Member] 350 Grantsville UT Kaysville 469 UT [Member] 469 Kaysville UT Layton 456 UT [Member] 456 Layton UT Ogden 359 UT [Member] 359 Ogden UT Ogden 1283 UT [Member] 1283 Ogden UT Orem 357 UT [Member] 357 Orem UT Providence 371 UT [Member] 371 Providence UT Salt Lake City 353 UT [Member] 353 Salt Lake City UT Salt Lake City 355 UT [Member] 355 Salt Lake City UT Salt Lake City 467 UT [Member] 467 Salt Lake City UT Salt Lake City 566 UT [Member] 566 Salt Lake City UT Salt Lake City 354 UT [Member] 354 Salt Lake City UT Springville 358 UT [Member] 358 Springville UT Stansbury 482 UT [Member] 482 Stansbury UT Washington Terrace 351 UT [Member] 351 Washington Terrace UT Washington Terrace 352 UT [Member] 352 Washington Terrace UT Fairfax 1208 VA [Member] 1208 Fairfax VA Reston 572 VA [Member] 572 Reston VA Renton 448 WA [Member] 448 Renton WA Seattle 781 WA [Member] 781 Seattle WA Seattle 782 WA [Member] 782 Seattle WA Seattle 783 WA [Member] 783 Seattle WA Seattle 785 WA [Member] 785 Seattle WA Seattle 1385 WA [Member] 1385 Seattle WA Fort Collins 2 CO [Member] 2 Fort Collins CO Morrison 18 CO [Member] 18 Morrison CO Statesboro 280 GA [Member] 280 Statesboro GA Rexburg 297 ID [Member] 297 Rexburg ID Anderson 378 IN [Member] 378 Anderson IN Angola 384 IN [Member] 384 Angola IN Fort Wayne 385 IN [Member] 385 Fort Wayne IN Fort Wayne 386 IN [Member] 386 Fort Wayne IN Huntington 387 IN [Member] 387 Huntington IN Kokomo 373 IN [Member] 373 Kokomo IN New Albany 454 IN [Member] 454 New Albany IN Tell City 484 IN [Member] 484 Tell City IN Cynthiana 688 KY [Member] 688 Cynthiana KY Franklin 298 LA [Member] 298 Franklin LA Morgan City 299 LA [Member] 299 Morgan City LA Las Vegas 388 NV [Member] 388 Las Vegas NV Las Vegas 389 NV [Member] 389 Las Vegas NV Fairborn 390 OH [Member] 390 Fairborn OH Georgetown 391 OH [Member] 391 Georgetown OH Port Clinton 392 OH [Member] 392 Port Clinton OH Springfield 393 OH [Member] 393 Springfield OH Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Toledo 394 OH [Member] 394 Toledo OH Versailles 395 OH [Member] 395 Versailles OH Fort Worth 285 TX [Member] 285 Fort Worth TX Ogden 296 UT [Member] 296 Ogden UT Fishersville 681 VA [Member] 681 Fishersville VA Floyd 682 VA [Member] 682 Floyd VA Independence 689 VA [Member] 689 Independence VA Newport News 683 VA [Member] 683 Newport News VA Roanoke 684 VA [Member] 684 Roanoke VA Staunton 685 VA [Member] 685 Staunton VA Williamsburg 686 VA [Member] 686 Williamsburg VA Windsor 690 VA [Member] 690 Windsor VA Woodstock 687 VA [Member] 687 Woodstock VA Fresno 1038 CA [Member] 1038 Fresno CA Irvine 423 CA [Member] 423 Irvine CA Colorado Springs 127 CO [Member] 127 Colorado Springs CO Atlanta 887 GA [Member] 887 Atlanta GA Overland Park 112 KS [Member] 112 Overland Park KS Slidell 877 LA [Member] 877 Slidell LA Baton Rouge 1383 LA [Member] 1383 Baton Rouge LA Dallas 886 TX [Member] 886 Dallas TX Dallas 1319 TX [Member] 1319 Dallas TX Plano 1384 TX [Member] 1384 Plano TX Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition Carrying amount as of the balance sheet date of costs that were capitalized after acquisition, including property improvements and carrying costs (for example, real estate taxes and insurance), but excluding the initial purchase price. Costs Capitalized Subsequent to Acquisition Real Estate Federal Income Tax Basis Less than Reported Net Assets Amount that the tax basis of the Company's net real estate is less than the reported amounts The amount by which the tax basis of the entity's net real estate is less than the reported amounts as of year-end. Real Estate Acquisitions Development Improvements The total amount of real estate investments acquired through acquisition, the amount of real estate developed, and the improvements made to real estate investments during the period. Acquisition of real estate and development and improvements Represents the increase in gross carrying value associated with the change in reporting presentation for properties placed into discontinued operations as of year-end. Balances associated with changes in reporting presentation Real Estate Gross Carrying Value Changes in Reporting Presentation Discontinued Operations Balances associated with changes in reporting presentation Real Estate Accumulated Depreciation Changes in Reporting Presentation Discontinued Operations Represents the increase in accumulated depreciation associated with the change in reporting presentation for properties placed into discontinued operations as of year-end. Shares withheld for obligations to pay the participants' related exercise price (in shares) Represents the number of shares withheld by the reporting entity for obligations to pay the participants' related exercise price. Share Based Compensation by Share Based Payment Award Shares Withheld for Obligations Toward Exercise of Shares Amount withheld to offset tax withholding obligations Represents the value of shares withheld by the reporting entity to offset tax withholding obligations of participants. Share Based Compensation by Share Based Payment Award Value of Shares Withheld to Offset Tax Withholding Obligations Range of Exercise Price 31.95 to 41.64 [Member] 31.95 - 41.64 Represents exercise price of stock options ranging from $31.95 to $41.64. Number of Primary Collateral Assets Sold Number of collateral primary assets sold Represents the number of primary collateral assets sold. Amount of loans settled Represents the amount of acquired loans receivable settled during period. Acquired Loans Receivable Settled Business Acquisition Purchase Price Allocation Intangible Liabilities The amount of acquisition cost of a business combination allocated to an intangible liability. Consideration, assumed intangible liabilities Schedule of Finite Lived Intangible Liabilities by Major Class [Table Text Block] Schedule of intangible lease liabilities Tabular disclosure of liabilities, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Finite Lived Intangible Assets and Liabilities by Major Class [Table] Disclosure of the carrying value of amortizable finite-lived intangible assets and liabilities, in total and by major class. Represents a market lease. Market Leases [Member] Market lease Ground leases Represents a ground lease. Ground Leases [Member] Finite Lived Intangible Assets and Liabilities by Major Class [Domain] The major class of finite-lived intangible assets and liabilities. These concepts are used to disclose identifiable intangible assets and liabilities associated with domain members defined in one or many axes to the table. Finite Lived Intangible Assets and Liabilities [Line Items] Intangible assets and liabilities Finite Lived Intangible Liabilities, Net Net intangible lease liabilities The aggregate sum of the gross carrying value of major finite-lived intangible liabilities class, less accumulated accretion and any impairment charges. Equity Method Investment Summarized Financial Information Goodwill and Other Assets, Net Goodwill and other assets, net Represents the carrying amount of goodwill and other assets, net for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. Proceeds from guarantor Proceeds from Guarantor The cash inflow associated with the collection, including prepayments, of loans receivable from the guarantor of the loan. The number of development projects. Number of senior housing development projects Development Projects Number Credit Enhancement Guarantee Credit Enhancement Guarantee [Abstract] Derivative Swap Type Fixed Price Semi Annual Buy Sell Amount The semi-annual buy (sell) amount related to a fixed price risk swap derivative. Semi-annual buy (sell) amount Acquisition Costs [Policy Text Block] Acquisition Costs Disclosure of accounting policy for acquisition costs. Schedule of Condensed Financial Statements by Operators [Table Text Block] Summary of HCR ManorCare's condensed consolidated financial information Tabular disclosure of condensed financial statements by operator of properties of the entity. Condensed Financial Statements [Abstract] Summarized condensed consolidated financial statements Condensed Financial Information Income Statement [Abstract] Income Statements: Condensed Financial Information Balance Sheets [Abstract] Balance Sheets: Barchester Loan [Member] Barchester Loan Represents information pertaining to Barchester Loan. Barchester debt investments Diluted earnings per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Leases with Purchase Option Purchase Price Price paid upon exercise of purchase option Represents the amount paid upon exercise of purchase option on a underlying real estate, previously taken on lease. Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed Liabilities Other Amount of acquisition cost of a business combination allocated to other liabilities. Number of Units Assisted Living Percent Percentage of assisted living units The percentage of assisted living units to total units acquired in the portfolio. Number of Units Independent Living Percent Percentage of independent living units The percentage of independent living units to total units acquired in the portfolio. Percentage of memory care units The percentage of memory care units to total units acquired in the portfolio. Number of Units Memory Care Percent The percentage of skilled nursing units to total units acquired in the portfolio. Number of Units Skilled Nursing Percent Percentage of skilled nursing Finite Lived Intangible Assets and Liabilities by Major Class [Axis] Information by major type or class of finite-lived intangible assets and liabilities. Capital Leases Proceeds from Direct Financing Lease Revenue Cash proceeds from DFL portfolio Represents the proceeds from direct financing leases during the reporting period. Number of Beds Sold Represents the number of beds that were sold during the reporting period. Number of beds sold Number of Beds Acquired Represents the number of beds that were acquired during the reporting period. Number of beds acquired DFL Portfolio [Member] DFL Portfolio A portfolio of direct financing leases that are being accounted for on a cash basis. Direct Financing Leases Variable Interest Entity Number of Tax Credit Subsidiaries Represents the number of tax credit subsidiaries. Number of tax credit subsidiaries Number of partnerships that lease a property owned by the Company Number of partnerships, which are tenants of the company Number of Partnerships Lease Property Owned Represents the number of partnerships that lease property owned by the entity. Derivative Swap Type Fixed Price Buy Sell Amount Buy (sell) amount The buy (sell) amount related to a fixed price risk swap derivative. Basic earnings per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Senior Unsecured, 4.25% notes due 2023 This element represents senior unsecured 4.25% notes due in 2023. Unsecured Debt 4.25 Percent Due 2023 [Member] Represents the amounts due for interest earned on loans and leases but not received, as of the balance sheet date. Accrued Interest Receivable on Loans and Leases Accrued interest receivables related to loans Loan Receivable Commitment to Finance Development Projects Commitments to fund seven senior housing development projects Represents the commitments to finance development projects, included in loan receivable. Debt Instrument Due 2023 [Member] Debt instrument maturing in 2023 This element represents the long-term debt maturing in 2023. Issuance of Common Stock [Abstract] Company's common stock issuances Common Stock Acquire Available for Sale Securities Shares Purchase of equity marketable securities (in shares) Represents the number of shares of common stock purchased, which are equity securities classified as available-for-sale securities. Schedule of total purchase price consideration paid Schedule of Business Combination Consideration Transferred [Table Text Block] Tabular disclosure of the consideration transferred in a business combination completed during the period. Thereafter Debt Instrument Redemption Period Thereafter [Member] Represents the period after the last period separately disclosed of debt redemption features under terms of the debt agreement. This element represents the interest-only loan receivable secured by a hospital in Louisiana with the final payment due in 2015. Mortgage Loans on Real Estate Interest Only Louisiana Due 2015 [Member] Monthly interest-only payments beginning in 2013, Louisiana, 2015 Business Acquisition [Axis] Mortgage Loans on Real Estate Interest Only Tennessee Maryland Pennsylvania and Texas Due 2016 and Mortgage Loans on Real Estate Interest Only New Jersey and Pennsylvania Due 2017 [Member] Monthly interest-only payments, Tennessee, Maryland, Pennsylvania and Texas, due in 2016 and monthly interest-only payments, New Jersey and Pennsylvania, 2017 This element represents the interest-only loan receivable secured by senior housing facilities in Tennessee, Maryland, Pennsylvania and Texas, with the final payment due in 2016 and the interest-only loan receivable secured by senior housing facilities in New Jersey and Pennsylvania with the final payment due in 2017. This element represents the interest-only loan receivable secured by senior housing facilities in Tennessee, Maryland, Pennsylvania and Texas, with the final payment due in 2016, the interest-only loan receivable secured by senior housing facilities in New Jersey and Pennsylvania with the final payment due in 2017 and the interest-only loan receivable secured by senior housing facilities in Pennsylvania with the final payment due in 2018. Mortgage Loans On Real Estate Interest Only TN MD PA And TX Due 2016 And Mortgage Loans On Real Estate Interest Only NJ And PA Due 2017 And Mortgage Loans On Real Estate Interest Only PA Due 2018 [Member] Monthly interest-only payments, Tennessee, Maryland, Pennsylvania and Texas, due in 2016; monthly interest-only payments, New Jersey and Pennsylvania, 2017 and monthly interest-only payments, Pennsylvania, 2018 Consideration, Debt and Other Liabilities Assumed Liability assumed as part of acquisition, par value Debt Acquired Business Combination, Consideration Transferred, Liabilities Incurred Ventas Inc [Member] Ventas Inc Represents information pertaining to Ventas Inc. Sunrise Senior Living Inc [Member] Sunrise Represents information pertaining to Sunrise Inc. and its Subsidiaries. Unaudited pro forma consolidated results of operations Business Acquisition, Pro Forma Information [Abstract] Monthly interest-only payments, Arizona, Minnesota and Texas, due in 2016 This element represents the loan receivable secured by senior housing facilities in Arizona, Minnesota and Texas, with the final payment due in 2016. Mortgage Loans on Real Estate Interest and Principal Arizona Minnesota and Texas Due 2016 [Member] This element represents the interest-only loan receivable secured by senior housing facilities in Pennsylvania with the final payment due in 2018. Mortgage Loans on Real Estate Interest Only Pennsylvania Due 2018 [Member] Monthly interest-only payments, Pennsylvania, 2018 Range of Exercise Price 31.95 to 46.92 [Member] 31.95 - 46.92 Represents exercise price of stock options ranging from $31.95 to $46.92. 2189 Anderson IN Anderson 2189 IN [Member] Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Investments in and advances to unconsolidated joint ventures Eldorado Heights 2179 OR [Member] 2179 Eldorado Heights OR Hermiston Terrace 2182 OR [Member] 2182 Hermiston Terrace OR Lancaster 2195 TX [Member] 2195 Lancaster TX Mt. Vernon 1143 IL [Member] 1143 Mt Vernon IL Oakridge 2173 WI [Member] 2173 Oakridge WI River Road 2131 OR [Member] 2131 River Road OR Transaction values the venture's real estate assets Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Post Acute and Skilled Nursing and Senior Housing [Member] Post-acute/skilled nursing and senior housing Combined segments of the entity representing post-acute/skilled nursing facilities and senior housing facilities. Senior Housing and Hospital and Medical Office [Member] Senior housing and hospital and medical office Combined segments of the entity representing senior housing, hospitals and medical office facilities. Number of Triple Net Master Leases Number of triple net master leases Represents the number of triple net master leases operated under lease agreement. Buildings and improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Poway 1473 CA [Member] 1473 Poway, CA Income Tax Expense Benefit including Discontinued Operations Income tax expense (benefit), including discontinued operations Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing and discontinued operations. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Cash Cash and cash equivalents Watch List Financing Receivable [Member] Watch List DFLs Represents a financing receivable that is being monitored closely in order to spot irregularities. Net Investment in Direct Financing and Sales Type Leases as Percentage Percentage of DFL Portfolio Represents the net amount of investment in direct financing and sales-type leases held in portfolio as a percentage of aggregate direct financing and sales-type leases. Workout Financing Receivable [Member] Workout Loans Represents a financing receivable with renegotiated terms to avoid foreclosure or liquidation. Percentage of Loan Portfolio Represents the amount of loans and leases held in portfolio as a percentage of aggregate loans and leases. Loans and Leases Receivable as Percentage Line of Credit Facility Increased Maximum Borrowing Capacity Increased maximum borrowing capacity Represents the increased maximum borrowing capacity under the credit facility. Noncontrolling interest disposed in connection with real estate sales Minority Interest Issued Real Estate Disposition Represents the amount of noncontrolling interest issued in connection with real estate disposition in noncash activities. Schedule of unaudited pro forma consolidated results of operations Business Acquisition, Pro Forma Information [Table Text Block] Joint Venture Investments Investment in strategic joint venture Represents the amount of investment in strategic joint venture. NNN Leased Portfolio [Member] NNN-leased Portfolio Represents a portfolio of triple-net master leases guaranteed by a third party. Stock Issued During Period, Shares, Stock Options Gross Exercised Exercise of stock options (in shares) Number of gross share options (or share units) exercised during the current period. Operating Leases Basis Spread on Variable Ceiling Rate Percentage of operating leases basis spread on variable ceiling rate Represents the percentage points added to the reference rate to compute the variable ceiling rate on the lessor's operating lease. Assets Acquired, Real Estate Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Land Number of Extension Options in Leases Number of extension options Represents the number of extension options available under the leases by the operator. Equity Method Investment Loss from Discontinued Operation Loss from discontinued operations Represents the amount of loss from discontinued operations reported by an equity method investment of the entity. Number of Facilities Acquired for which Existing Lease Agreement is Amended Number of senior housing communities amended Represents the number of facilities the entity acquired at the end of an acquisition for which existing lease agreement is amended. Business Combination Acquisition of Less than 100 Percent Noncontrolling Interest Non Managing Member Fair Value Consideration to non-managing member limited liability company units This element represents the fair value of the equity interests owned by noncontrolling non-managing members at the acquisition date. UK Portfolio [Member] UK portfolio Represents information related to a portfolio of care homes in the UK acquired by the entity. Mortgages included in the consolidation of HCP Ventures II Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Mortgage debt Assets Acquired, Net Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Total liabilities assumed Liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Consideration, Debt and Other Liabilities Assumed Direct financing leases Business Acquisition [Line Items] Acquisition Revenues Business Acquisition, Pro Forma Revenue Business Acquisition, Acquiree [Domain] Net income Business Acquisition, Pro Forma Net Income (Loss) HCR ManorCare Acquisition Legal, accounting and other fees and costs Business Acquisition, Transaction Costs Acquisition of facility Business Combination, Consideration Transferred Consideration, Cash Paid Assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] HCR ManorCare Acquisition Business Combination Disclosure [Text Block] Total purchase price consideration Business Combination, Consideration Transferred [Abstract] Fair values of assets acquired and liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Calculation of the HCP Ventures II purchase consideration and total purchase price Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination [Abstract] Net income (loss) Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Total revenues Net revenue Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Consideration, Noncontrolling Interest Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Noncontrolling interest issued in connection with real estate acquisition Other real estate acquisitions Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract] Investment ownership percentage Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Counterparty Name [Axis] 2014 Capital Leases, Future Minimum Payments Receivable, Next Twelve Months Income from direct financing leases Capital Leases, Income Statement, Direct Financing Lease Revenue DFL income Capital leases future minimum payments receivable Capital Leases, Future Minimum Payments Receivable, Fiscal Year Maturity [Abstract] Capital Leases, Future Minimum Payments, Receivable in Five Years 2018 2017 Capital Leases, Future Minimum Payments, Receivable in Four Years 2015 Capital Leases, Future Minimum Payments, Receivable in Two Years 2016 Capital Leases, Future Minimum Payments, Receivable in Three Years Net Investment in Direct Financing Leases Capital Leases in Financial Statements of Lessor Disclosure [Text Block] Thereafter Capital Leases, Future Minimum Payments, Receivable Due Thereafter Total Capital Leases, Future Minimum Payments Receivable Minimum lease payments receivable Capital Leases, Net Investment in Direct Financing Leases, Minimum Payments to be Received Initial annual rent Less unearned income Capital Leases, Net Investment in Direct Financing Leases, Deferred Income Estimated residual values Capital Leases, Net Investment in Direct Financing Leases, Unguaranteed Residual Values of Leased Property Carrying Value Reported Value Measurement [Member] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Cash flow hedge Cash Flow Hedging [Member] Former Chairman, Chief Executive Officer and President Chief Executive Officer [Member] Chairman and Chief Executive Officer Equity Class of Stock [Line Items] Class of Stock [Domain] Variable Interest Entity, Classification [Domain] Commitments and Contingencies. Commitments and contingencies Commitments and Contingencies Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock Common Stock [Member] Common stock, $1.00 par value: 750,000,000 shares authorized; 458,742,070 and 456,960,648 shares issued and outstanding, respectively Common Stock, Value, Issued Common stock, shares issued Common Stock, Shares, Issued Dividends declared per common share (in dollars per share) Common dividends, per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Common stock, shares authorized Common Stock, Shares Authorized Dividends paid per common share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Common Stock, Shares, Outstanding Common stock, shares outstanding Share-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Total comprehensive income attributable to noncontrolling interests Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest Total comprehensive income attributable to HCP, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Concentration Risk Type [Domain] Concentration of Credit Risk Concentration Risk [Line Items] Commitments and contingencies Concentration Risk Benchmark [Domain] Concentration Risk Type [Axis] Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration risk (as a percent) Concentration Risk, Percentage Consolidation Items [Domain] Principles of Consolidation Consolidation, Policy [Policy Text Block] Consolidation Items [Axis] Accrued construction costs Construction in Progress Expenditures Incurred but Not yet Paid Corporate and other assets Corporate, Non-Segment [Member] Operating Cost of Real Estate Revenue Costs and expenses: Costs and Expenses [Abstract] Total costs and expenses Costs and Expenses Foreign currency swap contract Currency swap contracts Currency Swap [Member] State income tax expense Current State and Local Tax Expense (Benefit) Federal income tax benefit Current Federal Tax Expense (Benefit) Debt instrument, variable rate basis Debt Instrument, Description of Variable Rate Basis Debt Instrument Debt Instrument [Line Items] Schedule of Long-term Debt Instruments [Table] Issuance of senior unsecured notes Principal amount of secured debt Debt Instrument, Face Amount Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Axis] Debt maturing in 2015 Debt Instrument, Redemption, Period Two [Member] Debt maturing in 2014 Debt Instrument, Redemption, Period One [Member] Debt maturing in 2016 Debt Instrument, Redemption, Period Three [Member] Debt maturing in 2018 Debt Instrument, Redemption, Period Five [Member] Debt maturing in 2017 Debt Instrument, Redemption, Period Four [Member] Debt and financing obligations Debt and Capital Lease Obligations Debt instrument, weighted-average basis spread on variable rate (as a percent) Debt instrument, basis spread on variable rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Debt Long-term Debt, Gross Total debt before discount, net Debt Debt Disclosure [Text Block] Maturity period of debt instruments Debt Instrument, Term Debt Instrument [Axis] Weighted-average interest rate (as a percent) Debt, Weighted Average Interest Rate Debt instrument, effective interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Debt Instrument, Name [Domain] Discounts, net Debt securities Debt instrument, stated interest rate, percentage (as a percent) Interest rate on repaid maturing debt (as a percent) Stated interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Discounts, net Debt Instrument, Unamortized Discount (Premium), Net Leasing costs, net Deferred Costs, Leasing, Net Deferred financing costs, net Deferred Finance Costs, Net Deferred revenue Deferred Revenue Straight-line rent assets, net of allowance of $34,274 and $34,230 respectively Deferred Rent Receivables, Net Amount that tax basis of net assets is less than reported amounts Deferred Tax Liabilities, Net Matching contributions to Employee Benefit Plan Defined Contribution Plan, Cost Recognized Employee Benefit Plan Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract] Depreciation and amortization of real estate, in-place lease and other intangibles: Depreciation, Depletion and Amortization, Nonproduction [Abstract] Continuing operations Depreciation and amortization Depreciation and amortization expense Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expenses Depreciation and Amortization, Discontinued Operations Proceeds from settlement of interest rate swap contract Derivative, Cash Received on Hedge Derivative liabilities Derivative liabilities Derivative Liability Notional amount Derivative Asset, Notional Amount Derivative Derivative [Line Items] Derivative [Table] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Financial Instruments Derivative assets Derivative Asset Floating/Exchange Rate Index Derivative, Description of Variable Rate Basis Fixed Rate/Buy Amount (as a percent) Debt instrument, fixed interest rate (as a percent) Derivative, Fixed Interest Rate Derivative, by Nature [Axis] Floating/Exchange Rate Index, percentage Derivative, Basis Spread on Variable Rate Derivative Contract [Domain] Hedging Relationship [Axis] Derivatives Derivatives, Policy [Policy Text Block] Development costs and construction in progress Development in Process Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Compensation Plans Operating income from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract] Other expenses, net Discontinued Operation, Amount of Other Income (Loss) from Disposition of Discontinued Operation, Net of Tax Assets Held-for-Sale and Discontinued Operations Discontinued Operations, Policy [Policy Text Block] Dispositions of Real Estate and Discontinued Operations Income before gain on sales of real estate, net of income taxes Income before gain on sales of real estate, net of income taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Income tax expense from discontinued operations Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period Gain on sales of real estate, net of income taxes Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Gain on sales of real estate, net of income taxes Operating expenses Disposal Group, Including Discontinued Operation, Operating Expense Dispositions of Real Estate and Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Total revenues Rental and related revenues Disposal Group, Including Discontinued Operation, Revenue Common dividends ($1.09 and $1.05 per share for the period ended June 30, 2014 and 2013, respectively) Dividends, Common Stock Preferred stock cash dividends Preferred dividends Dividends, Preferred Stock, Cash Preferred dividends Preferred stock dividends Preferred stock dividends Dividends, Preferred Stock Basic earnings per common share: Basic earnings per common share Earnings Per Share, Basic [Abstract] Diluted earnings per common share: Diluted earnings per common share Earnings Per Share, Diluted [Abstract] Denominator Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Earnings Per Common Share Earnings Per Share [Text Block] Earnings per Share Earnings Per Share, Policy [Policy Text Block] Net income applicable to common shares (in dollars per share) Basic earnings per common share (in dollars per share) Earnings Per Share, Basic Net income applicable to common shares (in dollars per share) Diluted earnings per common share (in dollars per share) Earnings Per Share, Diluted Earnings Per Common Share Effect of foreign exchange on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Stock Options Common stock options Employee Stock Option [Member] Total unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Total unrecognized compensation cost, period of recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Proceeds received from options exercised Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Combined basis difference Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Equity Total revenues Equity Method Investment, Summarized Financial Information, Revenue Total liabilities and partners' capital Equity Method Investment, Summarized Financial Information, Liabilities and Equity Investments in and Advances to Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Fair value, equity method investments Equity Method Investments Company owned interests in entities, accounted under equity method Equity Method Investments [Table Text Block] Total assets Equity Method Investment, Summarized Financial Information, Assets Investment ownership percentage Ownership interest (as a percent) Equity method investment (as a percent) Equity Method Investment, Ownership Percentage Impairments of equity method investments Impairments of investments in unconsolidated joint ventures Impairments of investments in unconsolidated joint ventures Equity Method Investment, Other than Temporary Impairment Net (loss) income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Net loss Investment, Name [Domain] Equity Component [Domain] Distributions of earnings from unconsolidated joint ventures Proceeds from Equity Method Investment, Dividends or Distributions Investments in and Advances to Unconsolidated Joint Ventures Equity securities Investments in Unconsolidated Joint Ventures Equity Method Investments, Policy [Policy Text Block] Fair Value Estimate of Fair Value Measurement [Member] Measurement Frequency [Axis] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair value on a recurring basis Fair Value, Measurements, Recurring [Member] Fair Value, Measurement Frequency [Domain] Measurement Basis [Axis] Fair Value Assets and Liabilities Measured on Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Measurements Fair Value Hierarchy [Domain] Fair value assets and liabilities measured on recurring basis: Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] Fair Value Measurement Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Summary of financial instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, by Balance Sheet Grouping [Table] Fair Value Measurement [Domain] Summary of the carrying values and fair values of financial instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Guarantee Disclosures About Fair Value of Financial Instruments Disclosures About Fair Value of Financial Instruments Financial Instruments Disclosure [Text Block] Summary of the Company's internal ratings for loans receivable Financing Receivable Credit Quality Indicators [Table Text Block] Summary of the Company's internal ratings for net investment in DFLs Remaining weighted-average amortization period of intangible assets Finite-Lived Intangible Asset, Useful Life Intangible assets, gross Finite-Lived Intangible Assets, Gross Estimated aggregate amortization of intangible assets, 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Five Estimated aggregate amortization of intangible assets, 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Three Estimated aggregate amortization of Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Accumulated depreciation and amortization Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Net intangible assets Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Estimated aggregate amortization of intangible assets, thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Estimated aggregate amortization of intangible assets, 2014 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Estimated aggregate amortization of intangible assets, 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Four Estimated aggregate amortization of intangible assets, 2015 Finite-Lived Intangible Assets, Amortization Expense, Year Two Foreign Currency Translation and Transactions Foreign Currency Transactions and Translations Policy [Policy Text Block] Fair value of hedge, liabilities Foreign Currency Cash Flow Hedge Liability at Fair Value Exchange rate USD/GBP Foreign Currency Exchange Rate, Translation Reclassification of unrealized gains into other income (expense) Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net Gain (loss) on cash flow hedge, ineffective portion Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness Marketable securities and other (gains) losses, net Gain (Loss) on Investments Foreign currency and derivative losses, net Gain (Loss) on Derivative Instruments, Net, Pretax Gain on sales of real estate Gain (Loss) on Sale of Investments General and administrative General and administrative General and Administrative Expense Goodwill Impairment charge of goodwill Impairment related to goodwill Goodwill, Impairment Loss Goodwill Goodwill Guarantees Resident fees and services Resident Fees and Services Health Care Organization, Resident Service Revenue Hedging Relationship [Domain] Marketable debt securities, net Held-to-maturity Securities Marketable debt securities Held-to-maturity Securities, Fair Value Impairment charges for direct financing lease Impairment charges related to investments in DFLs Impairment of Leasehold Impairment of Long-Lived Assets and Goodwill Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Impairments Impairment of Real Estate Impairment charges Continuing operations (in dollars per share) Income from continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued operations: Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity income from unconsolidated joint ventures Equity income from unconsolidated joint ventures HCP's share of earnings Net income (loss) Income (Loss) from Equity Method Investments Income from continuing operations applicable to HCP, Inc. Income (Loss) from Continuing Operations Attributable to Parent (Loss) income from continuing operations before income tax benefit (expense) Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share CONDENSED CONSOLIDATED STATEMENTS OF INCOME Income before income taxes and equity income from unconsolidated joint ventures Income before income taxes and equity income from and impairments of investments in unconsolidated joint ventures Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income Taxes Dispositions of Real Estate and Land Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Continuing operations (in dollars per share) Income from continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued operations Total discontinued operations Total discontinued operations Loss from discontinued operations, net of taxes Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income Taxes Income Tax Disclosure [Text Block] Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Discontinued operations (in dollars per share) Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income tax expense (benefit) Income taxes Income taxes Income tax benefit (expense) Income Tax Expense (Benefit) Tax expense Taxable Income Reconciliation Effective Income Tax Rate Reconciliation, Amount [Abstract] Noncontrolling interests' share in continuing operations Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest Income from continuing operations Income from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Income taxes paid Income Taxes Paid, Net Income Taxes Income Tax, Policy [Policy Text Block] Noncontrolling interests' share in discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Accounts receivable, net Increase (Decrease) in Accounts Receivable Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Changes in: Increase (Decrease) in Operating Capital [Abstract] Other assets Increase (Decrease) in Prepaid Expense and Other Assets (Increase) decrease in restricted cash Decrease in restricted cash Increase (Decrease) in Restricted Cash Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Interest income related to loans Interest and Fee Income, Loans and Leases Interest expense Interest expense Interest Expense Capitalized interest Interest Costs Capitalized Interest income Interest Income Interest income Interest Income, Operating Additional interest income as a result of extinguishment of loans Additional interest income which represents the related unamortized discounts and termination fee Effects of Change in Interest Rates Interest Rate Derivatives [Abstract] Interest paid, net of capitalized interest Interest Paid, Net Fair value of hedge, assets Interest Rate Cash Flow Hedge Asset at Fair Value Interest-rate swap contracts Interest Rate Swap [Member] Carrying value of interest accrued related to the Delphis loan Interest Receivable Fair value of hedge, liabilities Interest Rate Cash Flow Hedge Liability at Fair Value Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Carrying value of aggregate investments Buildings and improvements Investment Building and Building Improvements Fair value of HCP's 35% interest in HCP Ventures II (carrying value of $65,223 at closing) Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure Investments in and advances to unconsolidated joint ventures Carrying value of HCO's 35% interest in HCP Ventures II Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Land Carrying value, land Land Land Land [Member] Lease-up intangibles Leases, Acquired-in-Place [Member] Net Investment in Direct Financing Leases Rental Expense Future Minimum Rents Legal expenses Legal Fees Total liabilities and equity Liabilities and Equity Total liabilities Total liabilities (2) Liabilities Intangible liabilities on assets held for sale Liabilities of Disposal Group, Including Discontinued Operation LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Debt instrument, facility fee (as a percent) Line of Credit Facility, Commitment Fee Percentage Bank line of credit Amount outstanding under revolving credit facility Long-term Line of Credit Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit facility, amount outstanding Line of Credit Facility, Amount Outstanding Bank Line of Credit Line of Credit [Member] Litigation Case [Domain] Litigation Case [Axis] Provision for litigation expense Litigation Settlement, Expense Gain upon settlement of loans receivable Loans and Leases Receivable, Gain (Loss) on Sales, Net Remaining commitments to fund development projects Loans and Leases Receivable, Commitments, Fixed Rates Loans receivable Loans and Finance Receivables [Member] Allowance for Doubtful Accounts Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Loan loss allowance Loans and Leases Receivable, Allowance Allowance for loan losses Balance at the beginning Balance at the end Construction loans outstanding related to senior housing development projects Loans Receivable, Gross, Commercial, Construction Loans receivable, net Loans receivable, net Loans receivables Loans and Leases Receivable, Net Amount Term loan Loans Payable to Bank Loan receivable, other Loans receivable, before Impairment Loans and Leases Receivable, Gross, Carrying Amount, Other Loans receivable, net reported amount Loans receivable, after Impairment Loans and Leases Receivable, Net Amount, Other Loans Receivable Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Loans receivable, net Loans Receivable, Fair Value Disclosure Debt instruments, carrying amount Long-term Debt Buy Long [Member] 2014 (Six months) Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2015 Long-term Debt, Maturities, Repayments of Principal in Year Two 2017 Long-term Debt, Maturities, Repayments of Principal in Year Four 2018 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five 2016 Long-term Debt, Maturities, Repayments of Principal in Year Three 2014 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Term loan Loans Payable to Bank, Noncurrent Loss Contingencies [Table] Damages sought in Ventas litigation Loss Contingency, Damages Sought, Value Legal Proceedings Loss Contingencies [Line Items] Litigation provision Litigation settlement and provision Loss Contingency, Loss in Period Investment management fee income Investment Management Fee Income Investment management fee income Management Fees Revenue Marketable debt securities Marketable Securities Marketable Securities, Policy [Policy Text Block] Other non-segment Segment Reconciling Items [Member] Maximum Maximum [Member] Minimum Minimum [Member] Purchase of noncontrolling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders DownREIT unit, carrying value Non-managing member unitholders Noncontrolling Interest in Preferred Unit Holders Total noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Percentage of noncontrolling interests acquired Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Carrying value of noncontrolling interests, joint ventures Joint venture partners Noncontrolling Interest in Joint Ventures Interest rate on debt after four year term (as a percent) Mortgage Loans on Real Estate, Maximum Interest Rate in Range Fixed interest rate (as a percent) Mortgage Loans on Real Estate, Interest Rate Mortgage Loans on Real Estate Schedule [Table] Mortgage Loans on Real Estate Mortgage Loans on Real Estate [Line Items] Principal Amount Principal amount of secured debt Mortgage Loans on Real Estate, Face Amount of Mortgages Interest rate on debt, initially (as a percent) Mortgage Loans on Real Estate, Minimum Interest Rate in Range Number of loans receivable Mortgage Loans on Real Estate, Number of Loans Real Estate, Type of Property [Axis] Carrying Amount Mortgage Loans on Real Estate, Carrying Amount of Mortgages Real Estate [Domain] Real Estate Secured Mortgage Receivable [Member] Movement in Valuation Allowances and Reserves Movement in Valuation Allowances and Reserves [Roll Forward] Business Nature of Operations [Text Block] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net income applicable to common shares Net income Net income available to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Numerator Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net cash provided by operating activities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net income attributable to HCP, Inc. Net income Net income applicable to HCP, Inc. Net Income (Loss) Attributable to Parent Net investment in direct financing leases Net investment in direct financing leases Net Investment in Direct Financing and Sales Type Leases Noncontrolling interests' share in earnings Noncontrolling interests' share in continuing operations Net Income (Loss) Attributable to Noncontrolling Interest Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Supplemental schedule of non-cash investing activities: Noncash Investing and Financing Items [Abstract] Loans received upon real estate disposition Noncash or Part Noncash Divestiture, Amount of Consideration Received Mortgages and other liabilities assumed with real estate acquisitions Noncash or Part Noncash Acquisition, Value of Liabilities Assumed Total other income (expense) Other income, net Other income, net Nonoperating Income (Expense) Other income (expense), net Number of units Number of Units in Real Estate Property Number of currency swap contracts Number of Foreign Currency Derivatives Held Number of properties Number of Real Estate Properties Number of interest-rate swap contracts Number of Interest Rate Derivatives Held Number of states where acquired post-acute, skilled nursing and assisted living facilities are located Number of states where acquired senior housing communities are located Number of States in which Entity Operates Number of reportable segments Number of Operating Segments Number of reportable segments Number of Reportable Segments Issuance of noncontrolling interests Noncontrolling Interest, Increase from Subsidiary Equity Issuance Total Noncontrolling Interests Noncontrolling Interest [Member] Noncontrolling interests Noncontrolling Interest [Abstract] Noncontrolling interests in acquisitions Noncontrolling Interest, Increase from Business Combination Intangible liabilities, net Off-market Lease, Unfavorable Future minimum lease obligations under non-cancelable ground and other operating leases, Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Future minimum lease obligations under non-cancelable ground and other operating leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] Future minimum lease obligations under non-cancelable ground and other operating leases, 2017 Operating Leases, Future Minimum Payments, Due in Four Years Operating, general and administrative expense Operating Expenses Future Minimum Rents Operating Leases of Lessor Disclosure [Text Block] Total Operating Leases, Future Minimum Payments Receivable Future minimum lease obligations under non-cancelable ground and other operating leases, 2018 Operating Leases, Future Minimum Payments, Due in Five Years Rental and related revenues Operating Leases, Income Statement, Lease Revenue 2017 Operating Leases, Future Minimum Payments Receivable, in Four Years Future minimum lease obligations under non-cancelable ground and other operating leases, 2016 Operating Leases, Future Minimum Payments, Due in Three Years Rental expense attributable to continuing operations Operating Leases, Rent Expense, Net Future minimum lease obligations under non-cancelable ground and other operating leases, 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2015 Operating Leases, Future Minimum Payments Receivable, in Two Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter 2014 Rental and related revenues Operating Leases, Future Minimum Payments Receivable, Current Rent receivable from triple-net lease with HCR ManorCare Operating Leases, Income Statement, Minimum Lease Revenue 2018 Operating Leases, Future Minimum Payments Receivable, in Five Years Future minimum lease payments received Operating Leases, Future Minimum Payments Receivable [Abstract] Operating segment Operating Segments [Member] Continuing operations properties Future minimum lease obligations under non-cancelable ground and other operating leases, 2015 Operating Leases, Future Minimum Payments, Due in Two Years Future minimum lease obligations under non-cancelable ground and other operating leases, Total Operating Leases, Future Minimum Payments Due 2016 Operating Leases, Future Minimum Payments Receivable, in Three Years Business Total other comprehensive income Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Reclassification adjustment realized in net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other-than-temporary impairment on securities Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Change in Supplemental Executive Retirement Plan obligation Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Reclassification adjustment realized in net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Other debt Portion of other debt and occupancy fee deposits excluded from schedule of debt maturities Other Borrowings Other asset impairment charges Other assets, net Total other assets Goodwill, intangible and other assets, net Other Assets Other Assets Other Assets Disclosure [Text Block] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Assets. Change in net unrealized gains (losses) on securities: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract] Unrealized gains (losses) Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gains (losses) Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Change in net unrealized gains (losses) on cash flow hedges: Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract] Position [Domain] Position [Axis] Performing Financing Receivable [Member] Performing DFLs Performing Loans Total Stockholders' Equity Parent [Member] Participating securities' share in earnings Participating securities' share in continuing operations Participating Securities, Distributed and Undistributed Earnings Leasing costs and tenant and capital improvements Payments for Leasing Costs, Commissions, and Tenant Improvements Investments in loans receivable, net Repurchase of common stock Payments for Repurchase of Common Stock Preferred stock redemption Aggregate redemption amount Payments for Repurchase of Preferred Stock and Preference Stock Acquisitions of real estate Payments to Acquire Real Estate and Real Estate Joint Ventures Payment of litigation expenses Payments for Legal Settlements Payments to acquire productive assets Payments to Acquire Productive Assets Purchases of marketable debt securities Payments to Acquire Marketable Securities Payment to acquire equity method investment Payments to Acquire Equity Method Investments Cash used in the HCR ManorCare Acquisition, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Consideration, Cash Paid Acquisition an interest in a medical office building Cash paid for HCP Ventures II's partnership interest Payments to Acquire Businesses, Gross Cash used in the HCP Ventures II purchase, net of cash acquired Payments to Acquire Interest in Subsidiaries and Affiliates Purchase of equity marketable securities Payments to Acquire Available-for-sale Securities, Equity Investments in loans receivable and other Payments to Acquire Notes Receivable Other acquisitions of real estate Payments to Acquire Other Real Estate Purchase of an interest in and contributions to unconsolidated joint ventures Payments to Acquire Interest in Joint Venture Purchase of noncontrolling interests Payments to acquire additional interest in subsidiaries Payments to Acquire Additional Interest in Subsidiaries Deferred financing costs Payments of Debt Issuance Costs Dividends paid on common stock Payments of Dividends Development of real estate Payments to Develop Real Estate Assets Distributions to and purchase of noncontrolling interests Payments to Noncontrolling Interests Plan Name [Domain] Plan Name [Axis] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Dividend Rate (as a percent) Preferred Stock, Dividend Rate, Percentage Preferred stock redemption value (in dollars per share) Preferred Stock, Redemption Price Per Share Preferred stock, liquidation preference (in dollars) Preferred Stock, Liquidation Preference, Value Aggregate redemption amount Preferred Stock Preferred Stock [Member] Other Prepaid Expense and Other Assets Reclassifications Reclassification, Policy [Policy Text Block] Proceeds from borrower Proceeds from Collection of Loans Receivable Issuance of noncontrolling interests Proceeds from (Payments to) Noncontrolling Interests Net borrowings under bank line of credit Proceeds from (Repayments of) Lines of Credit Issuance of common stock and exercise of options Proceeds from Issuance or Sale of Equity Issuance of senior unsecured notes Proceeds from Issuance of Unsecured Debt Issuance of mortgage and other debt Proceeds from Issuance of Secured Debt Net proceeds from issuance of senior unsecured notes Proceeds from Issuance of Long-term Debt Principal repayments on loans receivable Proceeds from repayment Proceeds from Principal Repayments on Loans and Leases Held-for-investment Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Proceeds from the sales of marketable securities Proceeds from Sale and Maturity of Marketable Securities Proceeds from sales of real estate, net Proceeds from Sale of Property, Plant, and Equipment Net income Net income Gains or losses recorded to accumulated other comprehensive loss reclassified to earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Maximum useful life of building and improvements Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Axis] Additions to the allowance for loan losses Provision for Loan and Lease Losses Selected Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Selected Quarterly Financial Data (Unaudited) Range [Axis] Range [Domain] Land SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Land Buildings and Improvements Consideration for acquired property SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements Gross Amount at Which Carried As of Year End SEC Schedule III, Real Estate, Gross [Abstract] Buildings and Improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements Balances at beginning of year Balances at end of year Accumulated Depreciation SEC Schedule III, Real Estate Accumulated Depreciation Disposition of real estate SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold Reclassification of real estate assets to direct financing leases SEC Schedule III, Real Estate Accumulated Depreciation, Other Deductions Real Estate Property Investments Schedule III: Real Estate and Accumulated Depreciation SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Text Block] Life on Which Depreciation in Latest Income Statement is Computed SEC Schedule III, Real Estate and Accumulated Depreciation, Life Used for Depreciation Real estate: Real Estate Investment Property, Net [Abstract] Name of Property [Domain] Net real estate Real estate and other property, net Real Estate Investment Property, Net SEC Schedule III, Real Estate and Accumulated Depreciation, by Property [Table] Schedule III: Real Estate and Accumulated Depreciation Land SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land Real Estate and Accumulated Depreciation SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] Name of Property [Axis] Accumulated depreciation and amortization Real Estate Investment Property, Accumulated Depreciation Encumbrances as of Year end SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances Initial Cost to Company SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] Balances at beginning of year Balances at end of year Total SEC Schedule III, Real Estate, Gross Reclassification of real estate assets to direct financing leases SEC Schedule III, Real Estate, Other Deductions Disposition of real estate SEC Schedule III, Real Estate, Cost of Real Estate Sold Real Estate Real Estate, Policy [Policy Text Block] Receivable [Domain] Loans Receivable Reclassification out of Accumulated Other Comprehensive Income [Member] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Axis] Deferred rental revenues Recognition of Deferred Revenue Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of unrecognized tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of company's assets to total assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Reconciliation of reported net income to NOI and adjusted NOI Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Real estate: SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] Accumulated depreciation: SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] Transactions with Related Parties Related Party Transactions Disclosure [Text Block] Related Party Transaction Related Party Transaction [Line Items] Related Party [Axis] Related Party [Domain] Transactions with Related Parties Repayments of mortgage debt Repayments of Secured Debt Repayments of senior unsecured notes Repayments of Unsecured Debt Repayment of senior unsecured notes Repayments of Senior Debt Counterparty Name [Domain] Restricted Stock Units Restricted Stock Units (RSUs) [Member] Restricted stock Restricted Stock [Member] Restricted cash Restricted Cash and Cash Equivalents, Current Termination Restructuring Charges [Abstract] Termination related charges Restructuring Cost and Reserve [Line Items] Contribution of aggregate revenues and interest income for the lease of certain assets and obligations under debt securities Revenue from Related Parties Revenue Recognition Revenue Recognition, Real Estate Transactions, Policy [Policy Text Block] Total revenues Total revenues Revenues Revenues Revenues: Revenues [Abstract] Depreciation expense SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense Straight-line rents Straight Line Rent Straight-line rents Straight Line Rent Adjustments Currently Exercisable - Weighted Average Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Exercisable, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Expected life Weighted Average Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding at the end of the period, Weighted Average Remaining Contractual Term Outstanding at the beginning of the year, Weighted Average Remaining Contractual Term Weighted Average Remaining Contractual Term Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Stock issued under new issues (in dollars per share) Sale of Stock, Price Per Share Previously reported Scenario, Previously Reported [Member] Scenario, Unspecified [Domain] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Summary of fair values of assets acquired and liabilities assumed Schedule of Other Assets [Table Text Block] Schedule of other assets Schedule of loan loss activity Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Fair value measurements of financial assets and liabilities Schedule of real estate acquisitions Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Nonvested Share Activity [Table Text Block] Summary of additional information concerning unvested stock options Summary of the option activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Future minimum lease obligations under non-cancelable ground and other operating leases Schedule of Rent Expense [Table Text Block] Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Assumptions used for estimating fair value of stock options using Black-Scholes option valuation model Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of debt outstanding and weighted average interest rate Schedule of Debt [Table Text Block] Summary of stated debt maturities and scheduled principal repayments Schedule of Maturities of Long-term Debt [Table Text Block] Reconciliation of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Future minimum lease payments to be received, excluding operating expense reimbursements, from tenants under non-cancelable operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Selected quarterly information Schedule of Quarterly Financial Information [Table Text Block] Computation of basic and diluted earnings per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Summary of additional information concerning restricted stock and restricted stock units Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Schedule of intangible lease assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Marketable securities: Future minimum lease payments contractually due under DFLs Schedule of Financing Receivables, Minimum Payments [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of accumulated other comprehensive loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of operating income from discontinued operations and gain on sales of real estate included in discontinued operations Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Investment, Name [Axis] Schedule of Equity Method Investments [Table] Company owned interests in entities, accounted under equity method: Schedule of Equity Method Investments [Line Items] Schedule of derivative instruments Schedule of Derivative Instruments [Table Text Block] Information of revenue of reportable segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Restructuring and Related Costs [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule II: Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Stock by Class [Table] Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Schedule of company's issuances of common stock Schedule of Stock by Class [Table Text Block] Schedule of loans receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Significant Acquisitions and Disposals [Table] Summary additional information concerning outstanding and exercisable stock options Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of Variable Interest Entities [Table] Schedule of concentration of credit risk Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Mortgage Debt Secured Debt [Member] Mortgage debt Secured Debt Segment Disclosure Segment Reporting, Asset Reconciling Item [Line Items] Segment Disclosure Segment Reporting Information [Line Items] Segments [Domain] Segment reporting information, revenues Segment Reporting Information, Revenue for Reportable Segment [Abstract] Segment Disclosures Segment Reporting Segment Reporting, Policy [Policy Text Block] Segment Disclosures Segment Reporting Disclosure [Text Block] Geographical [Domain] Severance-related charges Severance Costs Severance-related charges Accelerated deferred compensation on termination Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Restricted Stock and Performance Restricted Stock Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Unvested restricted stock and performance restricted stock units activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted, Weighted Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Weighted Average Exercise Price Forfeited (in dollars per share) Unvested at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Unvested at the beginning of the period (in shares) Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Amortization of deferred compensation Share-based Compensation Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based compensation award vesting period, high end of the range (in years) Stock-based awards, vesting period Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangement by Share-based Payment Award Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Unvested at the beginning of the period, Weighted Average Grant Date Fair Value (in dollars per share) Unvested at the end of the period, Weighted Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted-average remaining vesting period of restricted stock and restricted stock units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited (in shares) Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercisable, Weighted Average Exercise Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Expected dividend yield (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Total fair values (at vesting) of restricted stock and restricted stock units vested Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Vested, Weighted Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Information Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Maximum number of shares available for future awards (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Total intrinsic value (at exercise) of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected volatility (as a percent) Maximum number of shares reserved for awards (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Risk-free rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Granted, weighted average grant date fair value (in dollars per share) Outstanding at the end of the period, Weighted Average Exercise Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding at the beginning of the year, Weighted Average Exercise Price (in dollars per share) Outstanding at the beginning of the year (in shares) Outstanding at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding at the beginning of the year, Aggregate Intrinsic Value Outstanding at the end of the period, Aggregate Intrinsic Value Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock option activity Equity Award [Domain] Stock options, contractual term Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award Exercise Price Range, Lower Range Limit (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Shares under Options (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Currently Exercisable - Shares Under Options (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Exercise Price Range, Upper Range Limit (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Balance (in shares) Balance (in shares) Shares, Issued Significant Acquisitions and Disposals by Transaction [Axis] Impairments Significant Acquisitions and Disposals [Line Items] Significant Acquisitions and Disposals, Transaction [Domain] Anticipated decrease in unrecognized tax benefits over the next 12 months Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Scenario [Axis] Statement [Table] Statement Statement [Line Items] Equity method investment, impairment details CONDENSED CONSOLIDATED STATEMENTS OF EQUITY Geographical [Axis] CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Equity Components [Axis] CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME CONDENSED CONSOLIDATED BALANCE SHEETS Segments [Axis] Class of Stock [Axis] Dividend Reinvestment and Stock Purchase Plan (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan Preferred stock redemption Preferred stock redemption Preferred stock redemption accrual Stock Redeemed or Called During Period, Value Preferred stock redemption (in shares) Preferred stock redemption (in shares) Stock Redeemed or Called During Period, Shares Vesting of restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Repurchase of common stock Stock Repurchased During Period, Value Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Conversion of DownREIT units (in shares) Stock Issued During Period, Shares, Conversion of Units Common shares issued for DownREIT units converted Cancellation of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Conversion of non-managing member units into common stock Stock Issued During Period, Value, Conversion of Units Common shares issued for DownREIT units converted Exercise of stock options (in shares) Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Restricted stock issued Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of common stock, net (in shares) Stock Issued During Period, Shares, New Issues Repurchase of common stock (in shares) Stock Repurchased During Period, Shares Issuance of common stock, net Stock Issued During Period, Value, New Issues Other Stockholders' Equity, Other Preferred Stock Redemptions Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block] Total stockholders' equity Balance at beginning of period Balance at end of period Stockholders' Equity Attributable to Parent Total equity Balance Balance Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Equity Stockholders' Equity Note Disclosure [Text Block] Subsequent Events Subsequent Events [Text Block] Subsequent Events Subsequent Event [Table] Subsequent Events Subsequent Event [Line Items] Subsequent event Subsequent Event [Member] Subsequent Event Type [Domain] Subsequent Event Type [Axis] Reconciliation of unrecognized tax benefits Summary of Income Tax Contingencies [Table Text Block] Supplemental Cash Flow Information Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Tenant recoveries Tenant Reimbursements Title of Individual [Axis] Relationship to Entity [Domain] Type of Arrangement and Non-arrangement Transactions [Axis] Unamortized discounts, fees and costs Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Interest associated with unrecognized tax benefits Unrecognized Tax Benefits, Interest on Income Taxes Expense Additions based on current year's tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Decrease in unrecognized tax benefits after receiving approval from the taxing authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Reductions based on prior years' tax positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Decrease in unrecognized tax benefits due to lapse in the statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Balance at the beginning of the year Balance at the end of the year Unrecognized Tax Benefits Additions based on prior year's tax positions Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Net (decrease) increase in unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Senior Unsecured Notes Unsecured Debt [Member] Senior unsecured notes Senior unsecured notes Unsecured Debt Use of Estimates Use of Estimates, Policy [Policy Text Block] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves [Domain] Amounts Charged Against Operations, net Valuation Allowances and Reserves, Charged to Cost and Expense Balance at the beginning of the year Balance at the end of the year Valuation Allowances and Reserves, Balance Uncollectible Accounts Written-off Valuation Allowances and Reserves, Deductions Schedule II: Valuation and Qualifying Accounts Allowance Accounts Valuation and Qualifying Accounts Disclosure [Line Items] Valuation Allowances and Reserves Type [Axis] Variable Interest Entities [Axis] VIEs Variable Interest Entity, Primary Beneficiary [Member] Carrying amount Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Unconsolidated Variable Interest Entities Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] Maximum Loss Exposure Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Assets/liability type Variable Interest Entity, Classification of Carrying Amount, Assets Company's involvement with VIEs: Variable Interest Entity [Line Items] Percentage of partnership interest Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Consolidated Variable Interest Entities Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] Warrants Warrant [Member] Dilutive potential common shares Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average shares used to calculate earnings per common share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Basic weighted average common shares Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Diluted weighted average common shares Weighted Average Number of Shares Outstanding, Diluted Charge incurred in interest expense related to write-off of unamortized loan fees associated with bridge loan facility Charge of unamortized issuance costs Write off of Deferred Debt Issuance Cost