Redeemable Non-controlling Interests [Abstract] Redeemable Non-controlling Interests [Abstract] Balance at beginning of period Redeemable Noncontrolling Interest, Equity, Carrying Amount Distributions to redeemable non-controlling interests Noncontrolling Interest, Decrease from Distributions to Redeemable Noncontrolling Interest Holders Noncontrolling Interest, Decrease from Distributions to Redeemable Noncontrolling Interest Holders Preferred return Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Balance at end of period Commitments and Contingencies Disclosure [Abstract] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Operating Leases, Rent Expense Operating Leases, Rent Expense Operating Leases, Future Minimum Payments Due, Rolling Maturity [Abstract] Operating Leases, Future Minimum Payments Due, Rolling Maturity [Abstract] 2014 Operating Leases, Future Minimum Payments, Remainder of Fiscal Year 2015 Operating Leases, Future Minimum Payments, Due in Two Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2018 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivative [Line Items] Derivative [Line Items] Schedule of interest rate derivatives Schedule of Interest Rate Derivatives [Table Text Block] Schedule of derivative instruments in Statement of Financial Position, fair value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of derivative instruments, effect on Other Comprehensive Income (Loss) Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Financing Liabilities [Abstract] Financing Liabilities [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Inland American CP Investment, LLC [Member] Inland American CP Investment, LLC [Member] Inland American CP Investment, LLC [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Inland preferred interest Inland preferred interest Inland preferred interest Capital lease obligations Capital Lease Obligations, Current Financing Liabilities Financing Liabilities Financing liabilities. Capital leases, unamortized discount Capital Leases Unamortized Discount Capital leases unamortized discount. Financing liabilities, net Financing Liabilities, Net Financing Liabilities, Net Number of shopping centers contributed to real estate venture Number of Shopping Centers Contributed to Real Estate Venture Number of Shopping Centers Contributed to Real Estate Venture Real estate contributed, fair value Real Estate Contributed, Fair Value Disclosure Real Estate Contributed, Fair Value Disclosure Payments to Acquire Interest in Joint Venture Payments to Acquire Interest in Joint Venture Unconsolidated joint venture investment, ownership percentage Unconsolidated Joint Venture Investment Ownership Percentage Unconsolidated joint venture investment ownership percentage. Percent of return from cumulative preferential share of cash flow generated in joint venture Percent of Return from Cumulative Preferential Share of Cash Flow Generated in Joint Venture Percent of Return from Cumulative Preferential Share of Cash Flow Generated in Joint Venture Real Estate [Abstract] Real Estate Real Estate Disclosure [Text Block] Redeemable Noncontrolling Interest [Table Text Block] Redeemable Noncontrolling Interest [Table Text Block] Income Statement [Abstract] Revenues Revenues [Abstract] Rental income Operating Leases, Income Statement, Minimum Lease Revenue Expense reimbursements Tenant Reimbursements Other revenues Gain Loss Due To Management Fees Gain loss due to management fees. Total revenues Real Estate Revenue, Net Operating expenses Operating Expenses [Abstract] Operating costs Operating Costs and Expenses Real estate taxes Real Estate Tax Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Provision for doubtful accounts Provision for Doubtful Accounts Impairment of real estate assets Impairment of Real Estate From Continuing Operations The charge against income from continuing operations to reduce carrying amount of real property to fair value. General and administrative General and Administrative Expense Total operating expenses Operating Expenses Other income (expense) Other Income and Expenses [Abstract] Dividends and interest Other Interest and Dividend Income Interest expense Interest Expense Gain on sale of real estate assets Gain (Loss) on Sale of Properties Gain (loss) on extinguishment of debt, net Gains (Losses) on Extinguishment of Debt Other Other Nonoperating Income (Expense) Total other income (expense) Nonoperating Income (Expense) Income (loss) before equity in income of unconsolidated joint ventures Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Equity in income of unconsolidated joint ventures Income (Loss) from Equity Method Investments Gain on disposal of investments in unconsolidated joint ventures Gain (loss) on disposal of investments in unconsolidated joint ventures Gain (loss) on disposal of investments in unconsolidated joint ventures Income (loss) from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Income (loss) from discontinued operations Disposal Group, Including Discontinued Operation, Operating Income (Loss) Gain on disposition of operating properties Gain Loss on Discontinued Operations Gain loss on discontinued operations. Impairment of real estate held for sale Gain Loss Due To Impairment On Real Estate Gain loss due to impairment on real estate. Income (loss) from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net (income) loss attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Per common share Earnings Per Share [Abstract] Loss from continuing operations Income (Loss) from Continuing Operations, Per Share [Abstract] Income (Loss) from Continuing Operations, Per Share [Abstract] Basic (usd per share) Income (Loss) from Continuing Operations, Per Basic Share Diluted (usd per share) Income (Loss) from Continuing Operations, Per Diluted Share Net loss attributable to common stockholders Net Income (Loss) Available To Common Stockholders [Abstract] Net Income (Loss) Available To Common Stockholders [Abstract] Basic (usd per share) Earnings Per Share, Basic Diluted (usd per share) Earnings Per Share, Diluted Weighted average common outstanding shares Weighted Aerage Cmmon Otstanding Sares [Abstract] Weighted Aerage Cmmon Otstanding Sares [Abstract] Basic (usd per share) Weighted Average Number of Shares Outstanding, Basic Diluted (usd per share) Weighted Average Number of Shares Outstanding, Diluted Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Performance Shares [Member] Performance Shares [Member] Restricted Stock [Member] Restricted Stock [Member] Triggering Events [Axis] Triggering Events [Axis] Triggering Events [Axis] Triggering Events [Domain] Triggering Events [Domain] Triggering Events [Domain] To be Recognized in 2.3 Years [Member] To be Recognized in 2.3 Years [Member] To be Recognized in 2.3 Years [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Grants in period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based compensation Share-based Compensation Compensation cost not yet recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Percent of cash proceeds received if units granted, internal rate of return Percent of Cash Proceeds Received if Units Granted, Internal Rate of Return Percent of Cash Proceeds Received if Units Granted, Internal Rate of Return Weighted average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Noncontrolling Interest [Abstract] Non-controlling Interests Noncontrolling Interest Disclosure [Text Block] Schedule of earnings per share, basic and diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings per Share [Table] Schedule of Earnings per Share [Table] Schedule of Earnings per Share [Table] OP Units [Member] OP Units [Member] OP Units [Member] BPG Sub [Member] BPG Sub [Member] BPG Sub [Member] Schedule of Earnings per Share [Line Items] Schedule of Earnings per Share [Line Items] [Line Items] for Schedule of Earnings per Share [Table] Weighted average number of vested common shares outstanding - basic Accounting Policies [Abstract] Nture of Oerations and Financial Statements Presentation [Table] Nture of Oerations and Financial Statements Presentation [Table] Nture of Oerations and Financial Statements Presentation [Table] Real Estate Property Ownership [Axis] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Wholly Owned Properties [Member] Wholly Owned Properties [Member] Partially Owned Properties [Member] Partially Owned Properties [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Series of Individually Immaterial Business Acquisitions [Member] Series of Individually Immaterial Business Acquisitions [Member] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Common Stock [Member] Common Stock [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Unsecured Debt [Member] Unsecured Debt [Member] Brixmor Property Group, Inc. [Member] Brixmor Property Group, Inc. [Member] Brixmor Property Group, Inc. [Member] Nture of Oerations and Financial Statements Presentation [Line Items] Nture of Oerations and Financial Statements Presentation [Line Items] [Line Items] for Nture of Oerations and Financial Statements Presentation [Table] Number of real estate properties Number of Real Estate Properties Assets, carrying value disclosure Assets, Carrying Value Disclosure Assets, Carrying Value Disclosure Shares sold in public offering Partners' Capital Account, Units, Sold in Public Offering Price per share Initial Public Offering, Price per Share Initial Public Offering, Price per Share Proceeds from issuance initial public offering Proceeds from Issuance Initial Public Offering Underwriting discounts, expenses and transaction costs Initial Public Offering, Underwriting Discounts, Expenses and Transaction Costs Initial Public Offering, Underwriting Discounts, Expenses and Transaction Costs Debt repaid Extinguishment of Debt, Amount Number of properties acquired Business Combination, Acquired Entity, Number of Properties Acquired Business Combination, Acquired Entity, Number of Properties Acquired Number of shares exchanged for interest in properties Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Repayments of debt Repayments of Debt Number of real estate properties that operating partnership has an interest Number of Real Estate Properties that Operating Partnership has an Interest Number of Real Estate Properties that Operating Partnership has an Interest Number of Non-Core properties not transferred to Pre-IPO owners Number of Non-Core Properties Not Transferred to Pre-IPO Owners Number of Non-Core Properties Not Transferred to Pre-IPO Owners Number of real estate properties, disposed Number of Real Estate Properties, Disposed Number of Real Estate Properties, Disposed Ownership percentage Equity Method Investment, Ownership Percentage Assets, fair value disclosure Assets, Fair Value Disclosure Gain (loss) on disposition of property plant equipment Gain (Loss) on Disposition of Property Plant Equipment Debt Disclosure [Abstract] Future expected/scheduled maturities of outstanding debt and capital lease Long-term Debt, Fiscal Year Maturity [Abstract] 2014 (remaining nine months) Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2015 Long-term Debt, Maturities, Repayments of Principal in Year Two 2016 Long-term Debt, Maturities, Repayments of Principal in Year Three 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 Total debt maturities Long-term Debt, Gross Net unamortized premiums on mortgages Debt Instrument, Unamortized Premium Net unamortized discount on notes Debt Instrument, Unamortized Discount Total debt obligations Debt and Capital Lease Obligations Financing Liabilities Financing Liabilities [Text Block] Financing Liabilities [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Interest Rate Cap [Member] Interest Rate Cap [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Number of Instruments Derivative, Number of Instruments Held Notional Amount Derivative, Notional Amount Document and Entity Information [Abstract] -- None. No documentation exists for this element. -- Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Statement of Financial Position [Abstract] Assets Assets [Abstract] Real estate Land Land Buildings and improvements Investment Building and Building Improvements Real estate, gross Real Estate Investment Property, at Cost Accumulated depreciation and amortization Real Estate Investment Property, Accumulated Depreciation Real estate, net Real Estate Investment Property, Net Investments in and advances to unconsolidated joint ventures Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash and Cash Equivalents Marketable securities Marketable Securities Receivables, net Receivables, Net, Current Deferred charges and prepaid expenses, net Deferred Charges and Prepaid Expenses, Net Deferred Charges and Prepaid Expenses, Net Other assets Other Assets Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Liabilities Liabilities [Abstract] Debt obligations, net Mortgages Payable Including Unamortized Premium Mortgages payable including unamortized premium. Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Total liabilities Liabilities Redeemable non-controlling interests Commitments and contingencies Commitments and Contingencies Equity Equity [Abstract] Common stock, $0.01 par value; authorized 3,000,000,000 shares; 245,095,327 and 229,689,960 shares outstanding Common Stock, Value, Issued Additional paid in capital Additional Paid in Capital, Common Stock Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Distributions and accumulated losses Accumulated Losses Accumulated Losses Total stockholders' equity Stockholders' Equity Attributable to Parent Non-controlling interests Noncontrolling Interest in Operating Partnerships Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Earnings Per Share, Basic [Abstract] Earnings Per Share, Basic [Abstract] Income (loss) from continuing operations (Income) loss attributable to non-controlling interests Net Income (Loss) Attributable to Convertible Noncontrolling Interest Net Income (Loss) Attributable to Convertible Noncontrolling Interest Dividends on unvested restricted shares Declared Dividends Allocated to Unvested Shares Declared Dividends Allocated to Unvested Shares Preferred stock dividends Dividends, Preferred Stock Income (loss) from continuing operations attributable to common stockholders Income (Loss) from Continuing Operations Attributable to Common Stockholders Income (Loss) from Continuing Operations Attributable to Common Stockholders Income (loss) from discontinued operations, net of non-controlling interests Income (Loss) from Discontinued Operations, Net of Noncontrolling Interest Income (Loss) from Discontinued Operations, Net of Noncontrolling Interest Net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, for Basic Earnings per Share Net Income (Loss) Available to Common Stockholders, for Basic Earnings per Share Weighted average number of vested common shares outstanding - basic Income (loss) from continuing operations Income (loss) from discontinued operations Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Net income (loss) Computation of Diluted Earnings Per Share: Earnings Per Share, Diluted [Abstract] Income (loss) from discontinued operations, net of nonconvertible non-controlling interests Income (loss) from discontinued operations, net of nonconvertible noncontrolling interests Income (loss) from discontinued operations, net of nonconvertible noncontrolling interests Net income (loss) attributable to the Company's common stockholders for diluted earnings per share Net Income (Loss) Available to Common Stockholders, Diluted Equity awards Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average common shares outstanding - diluted Income (loss) from continuing operations Income (loss) from discontinued operations Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Net income (loss) Acquisitions and Dispositions [Abstract] Acquisitions and dispositions. Discontinued Operations and Assets Held for Sale Acquisitions and Dispositions [Text Block] Acquisitions and dispositions. Interest Rate Swap [Member] Interest Rate Swap [Member] Gross derivative assets Derivative Asset, Fair Value, Gross Asset Gross derivative liabilities Derivative Liability, Fair Value, Gross Liability Net derivative liability Derivative, Fair Value, Net Nature of Business and Financial Statement Presentation Significant Accounting Policies [Text Block] Schedule of Acquisitions and Dispositions [Table] Schedule of Acquisitions and Dispositions [Table] Schedule of Acquisitions and Dispositions [Table] Operating Activities [Axis] Operating Activities [Axis] Operating Activities [Domain] Operating Activities [Domain] Discontinued Operations [Member] Discontinued Operations [Member] Schedule of Acquisitions and Dispositions [Line Items] Schedule of Acquisitions and Dispositions [Line Items] [Line Items] for Schedule of Acquisitions and Dispositions [Table] Discontinued operations: Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract] Revenues Disposal Group, Including Discontinued Operation, Revenue Operating expenses Disposal Group, Including Discontinued Operation, Operating Expense Other expense, net Disposal Group Including Discontinued Operation Other Income Expense Disposal Group Including Discontinued Operation other income expense . Income from discontinued operating properties Gain on disposition of operating properties Net Income (Loss) Attributable to Noncontrolling Interest Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Net Income (Loss) Available to Common Stockholders, Basic Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Number of Non-Core Properties in which Company Owns 100% Number of Non-Core Properties in which Company Owns 100% Number of Non-Core Properties in which Company Owns 100% Number Of Shopping Centers Classified As Real Estate Held For Sale Number Of Shopping Centers Classified As Real Estate Held For Sale Number of shopping centers classified as real estate held for sale. Aggregate book value Real Estate Held-for-sale Number of Non-Core properties transferred to Pre-IPO owners Number of Real Estate Properties, Transferred Number of Real Estate Properties, Transferred Number of shopping centers sold Number Of Shopping Centers Sold Number of shopping centers sold. Proceeds from dispositions Proceeds from Sale, Maturity and Collection of Investments Impairment of Real Estate Impairment of Real Estate Summary of operations from discontinued operations Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] Financial Instruments - Derivatives and Hedging Derivative Instruments and Hedging Activities Disclosure [Text Block] Energy [Axis] Energy [Axis] Energy [Domain] Energy [Domain] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Position [Axis] Position [Axis] Position [Domain] Position [Domain] Amount of loss recognized in OCI on derivative Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount of gain (loss) reclassified from accumulated OCI into interest expense Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Reported Value Measurement [Member] Reported Value Measurement [Member] Estimate of Fair Value Measurement [Member] Estimate of Fair Value Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Estimated fair value of the Company's debt obligations compared to their carrying amounts Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Mortgages and secured loans payable Notes payable Notes Payable Unsecured credit facility and term loan Long-term Line of Credit Financing liabilities Mortgages and secured loans payable Mortgages And Secured Loans Payable Fair Value Disclosure Mortgages and secured loans payable fair value disclosure. Notes payable Notes Payable, Fair Value Disclosure Unsecured credit facility and term loan Line of Credit Facility, Amount Outstanding, Fair Value Disclosure Line of Credit Facility, Amount Outstanding, Fair Value Disclosure Total debt obligations Debt and Capital Lease Obligations, Fair Value Disclosure Debt and Capital Lease Obligations, Fair Value Disclosure Financing liabilities Financing Liabilities Fair Value Disclosure Financing Liabilities Fair Value Disclosure Statement of Stockholders' Equity [Abstract] Dividends, per common share Common Stock, Dividends, Per Share, Declared Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid in Capital [Member] Additional Paid-in Capital [Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income (Loss) [Member] Distributions and Accumulated Losses [Member] Accumulated Distributions in Excess of Net Income [Member] Non-controlling Interests [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance, shares Shares, Outstanding Beginning balance, value Common stock dividends ($0.40 per common share) Partners' Capital Account, Distributions Distributions to non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Redemption of non-core series A Redemption of non-core series A Redemption of non-core series A Compensation expense relating to Class B Units Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Acquisition of non-controlling interests Acquisition Of Additional Interest Attributable To Related Party Acquisition of additional interest attributable to related party. Credit Swap Liability Credit Swap Liability Credit Swap Liability Unrealized gain (loss) on marketable securities Marketable Securities, Unrealized Gain (Loss) Conversion of Operating Partnership units and BPG Subsidiary shares into common stock, share Conversion of Stock, Shares Converted Conversion of Operating Partnership units and BPG Subsidiary shares into common stock, value Conversion of Stock, Amount Issued Net (loss) income Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Ending balance, shares Ending balance, value Statement of Comprehensive Income [Abstract] Net income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Unrealized loss on interest rate hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Unrealized gain (loss) on marketable securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive (income) loss attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to the Company Comprehensive Income (Loss), Net of Tax, Attributable to Parent Fair Value Disclosures Fair Value Disclosures [Text Block] Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Receivables [Member] Receivables [Member] Receivables [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Due from related parties Due from Related Parties Statement of Cash Flows [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Net Income (Loss) Attributable to Parent Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Debt premium and discount amortization Amortization of Debt Discount (Premium) Deferred financing cost amortization Amortization of Financing Costs Above- and below-market lease intangible amortization Amortization of above and below Market Leases Provisions of impairment Gain on disposition of operating properties and investments in unconsolidated joint ventures Gain (Loss) on Disposition of Real Estate, Discontinued Operations Equity based compensation Amortization of Class B units Amortization of Class B units Other Other Noncash Income (Expense) (Gain) loss on extinguishment of debt, net Gains (Losses) on Extinguishment of Debt, Including Discontinued Operations Gains (Losses) on Extinguishment of Debt, Including Discontinued Operations Changes in operating assets and liabilities: Increase (Decrease) in Other Operating Assets and Liabilities, Net [Abstract] Restricted cash Increase (Decrease) in Restricted Cash Receivables Increase (Decrease) in Accounts and Other Receivables Deferred charges and prepaid expenses Increase (Decrease) in Deferred Charges and Prepaid Expenses, Net Increase (Decrease) in Deferred Charges and Prepaid Expenses, Net Other assets Increase (Decrease) in Other Operating Assets Accounts payable, accrued expenses and other liabilities Increase Decrease In Other Liabilities And Due To Related Parties Increase decrease in other liabilities and due to related parties. Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Improvements to and investments in real estate assets Payments to Develop Real Estate Assets Proceeds from sales of real estate assets Distributions from unconsolidated joint ventures Distributions Of Capital From Unconsolidated Joint Ventures Distribution of capital from an entity that is affiliated with the entity by means of direct or indirect ownership. Change in restricted cash attributable to investing activities Movement in Restricted Cash Relating to Investing Activities Movement in restricted cash relating to investing activities. Purchase of marketable securities Payments to Acquire Marketable Securities Proceeds from sale of marketable securities Proceeds from Sale and Maturity of Marketable Securities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Repayment of debt obligations and financing liabilities Principal Payments of Mortgages Capital Leases and Notes Payable Principal Payments of Mortgages Capital Leases and Notes Payable Proceeds from debt obligations Proceeds from Issuance of Long-term Debt Repayment of borrowings under unsecured revolving credit facility Repayments of Lines of Credit Proceeds from borrowings under unsecured credit facility Proceeds from Lines of Credit Proceeds from unsecured term loan Proceeds from Unsecured Lines of Credit Deferred financing costs Payments of Financing Costs Distributions to common stockholders Payments of Capital Distribution Distributions to non-controlling interests and other Payments to Noncontrolling Interests Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Change in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental non-cash investing and/or financing activities: Noncash Investing and Financing Items [Abstract] Net carrying value of properties distributed to non-controlling owners Net carrying value of properties distributed to non-controlling owners Net carrying value of properties distributed to non-controlling owners Noncontrolling Interest [Table] Noncontrolling Interest [Table] Blackstone Advisory Partners L.P. [Member] Blackstone Advisory Partners L.P. [Member] Blackstone Advisory Partners L.P. [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Ownership percentage by parent Noncontrolling Interest, Ownership Percentage by Parent Ownership percentage by noncontrolling owners Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Conversion of Stock, Shares Converted Secondary Offering Expenses Secondary Offering Expenses Secondary Offering Expenses Due to Related Parties Due to Related Parties Number of instruments Notional amount Amount expected to be reclassified from accumulated other comprehensive loss in the next twelve months Derivative Instruments, Gain (Loss) Expected to be Reclassified from Accumulated OCI into Income, for the Next Twelve Months, Effective Portion, Net Derivative Instruments, Gain (Loss) Expected to be Reclassified from Accumulated OCI into Income, for the Next Twelve Months, Effective Portion, Net Agreement obligations Derivative Instruments, Agreement Obligations Derivative Instruments, Agreement Obligations Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Leases, Acquired-in-Place [Member] Leases, Acquired-in-Place [Member] Above Market Leases [Member] Above Market Leases [Member] Continuing Operations [Member] Continuing Operations [Member] Real Estate Properties [Line Items] Real Estate Properties [Line Items] Real Estate Owned, Disclosure of Detailed Components [Abstract] Real Estate Owned, Disclosure of Detailed Components [Abstract] Building Rental Properties Building and tenant improvements Tenant Improvements Other rental property Real Estate Intangible Assets Real Estate Intangible Assets Accumulated depreciation and amortization In-place lease value Finite-Lived Intangible Asset, Acquired-in-Place Leases Above market leases Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible liabilities relating to below-market leases Below Market Lease, Intangible Liabilities Below Market Lease, Intangible Liabilities Accumulated amortization on below-market leases Below Market Lease, Accumulated Amortization Amortization of Intangible Assets Amortization of Intangible Assets Estimated Amortization Expense of Intangible Assets and Liabilities [Abstract] Estimated Amortization Expense of Intangible Assets and Liabilities [Abstract] Estimated Amortization Expense of Intangible Assets and Liabilities [Abstract] 2014 (remaining nine months) Finite Lived Intangible Assets Liabilities Amortization Expense Remainder Of Fiscal Year Finite Lived Intangible Assets Liabilities Amortization Expense Remainder Of Fiscal Year 2015 Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Two Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Two 2016 Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Three Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Three 2017 Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Four Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Four 2018 Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Five Finite Lived Intangible Assets (Liabilities) Amortization Expense Year Five Related-Party Transactions Related Party Transactions Disclosure [Text Block] Fixed Rate Mortgages and Secured Loans [Member] Fixed Rate Long Term Debt [Member] Fixed rate long-term debt. Variable Rate Mortgages and Secured Loans [Member] Variable Rate Long Term Debt [Member] Variable rate long-term debt. Notes Payable to Financial Institutions [Member] Notes Payable to Financial Institutions [Member] Notes Payable to Financial Institutions [Member] Term Loan [Member] Term Loan [Member] Term Loan [Member] Unsecured Term Loan [Axis] Unsecured Term Loan [Axis] Unsecured Term Loan [Axis] Unsecured Term Loan [Domain] Unsecured Term Loan [Domain] [Domain] for Unsecured Term Loan [Axis] Carrying Amounts [Member] Unsecured Credit Facility [Member] Unsecured Credit Facility [Member] Unsecured Credit Facility [Member] Minimum [Member] Maximum [Member] Maximum [Member] Debt obligations under various arrangements with financial institutions Debt Instruments [Abstract] MORTGAGES AND SECURED LOANS PAYABLE Mortgage Loans on Real Estate, Commercial and Consumer, Net, (Investment Based Operations Presentation) [Abstract] Fixed rate mortgages and secured loans Long-term Debt, Percentage Bearing Fixed Interest, Amount Variable rate mortgages and secured loans Long-term Debt, Percentage Bearing Variable Interest, Amount Total mortgages and secured loans Mortgages And Secured Loans Mortgages and secured loans. Net unamortized premium Total mortgages and secured loans, net NOTES PAYABLE Notes Payable, Noncurrent [Abstract] Total notes Notes Payable Gross Notes payable gross. Net unamortized discount Total notes, net Long-term debt Total debt obligations Collateral carrying value Debt Instrument Collateral Carrying Value Debt instrument collateral carrying value. Weighted average fixed interest rate Long-term Debt, Weighted Average Interest Rate Plus a spread of basis point Debt Instrument, Basis Spread on Variable Rate Debt instrument, repurchased face amount Debt Instrument, Repurchased Face Amount Number of interest rate derivatives held Number of Interest Rate Derivatives Held Effective percentage Debt Instrument, Interest Rate, Effective Percentage Repayments of notes payable Repayments of Notes Payable Credit facility maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Term loan face amount Debt Instrument, Face Amount Schedule Of Fair Value Debt Obligation Schedule Of Fair Value Debt Obligation [Table Text Block] Schedule Of Fair Value Debt Obligation [Table Text Block] Stock Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Debt obligations under various arrangements with financial institutions Schedule of Long-term Debt Instruments [Table Text Block] Future expected/scheduled maturities of outstanding debt and capital lease obligations Schedule of Maturities of Long-term Debt [Table Text Block] Redeemable Non-controlling Interests [Text Block] Redeemable Non-controlling Interests [Text Block] Redeemable Non-controlling Interests [Text Block] Debt Obligations Debt Disclosure [Text Block] Description of Business Business Description and Accounting Policies [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Subsequent Events Subsequent Events [Text Block] Income Taxes Income Tax, Policy [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Other Liabilities Disclosure [Abstract] Financing liabilities Financing Liabilities [Table Text Block] [Table Text Block] for Financing Liabilities [Table] Schedule of real estate properties Schedule of Real Estate Properties [Table Text Block] Schedule of expected net amortization expense associated with intangible assets and liabilities Schedule of Expected Net Amortization Expense Associated with Intangible Assets and Liabilities [Table Text Block] Schedule of Expected Net Amortization Expense Associated with Intangible Assets and Liabilities [Table Text Block] Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares Authorized Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Federal Funds Effective Rate [Member] Federal Funds Effective Rate [Member] Federal Funds Effective Rate [Member] 30-day LIBOR [Member] 30-day LIBOR [Member] 30-day LIBOR [Member] Base Rate [Member] Base Rate [Member] LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Mortgages [Member] Mortgages [Member] Notes Payable, Other Payables [Member] Notes Payable, Other Payables [Member] Maximum [Member] Gain (loss) on extinguishment of debt, net Accrued interest Interest Payable Earnings Per Share Earnings Per Share [Text Block]