The percentage of co-investor's interest reflected in noncontrolling interest.
Percentage of Investor Interest Reflected in Noncontrolling Interest
Percentage of co-investor's interest reflected in noncontrolling interest
International Matex Tank Terminals [Member]
International Matex Tank Terminals [Member]
IMTT [Member]
IMTT [Member]
Exergy Idaho Holdings [Member]
Exergy Idaho Holdings [Member]
Exergy Idaho Holdings [Member]
Galaxy And Boca Aviation Acquisitions [Member]
Galaxy And Boca Aviation Acquisitions [Member]
Galaxy And Boca Aviation Acquisitions [Member]
Tabular disclosure of payment of cash dividends to manager, related party, during an accounting period.
Schedule Of Dividends Paid To Manager Related Party [Table Text Block]
Schedule of Dividends Paid to Manager
The number of common shares that remain unissued by an entity's charter and bylaws under Dividend Reinvestment Plan.
Common Stock Shares Dividend Reinvestment Plan Unissued
Shares, unissued under Dividend Reinvestment Plan
Common Stock, Votes per share
Common Stock Votes Per Share
Number of votes for each outstanding share of the Company
The maximum number of common shares permitted to be issued by an entity's charter and bylaws under Dividend Reinvestment Plan.
Common Stock Shares Dividend Reinvestment Plan Authorized
Shares, authorized under Dividend Reinvestment Plan
Number of marine terminals
Number Of Marine Terminals
Number of marine terminals
The number of shares of the company held by the manager, a related party, for the period.
Number of Shares Held by Manager Related Party
Shares of the Company held by Manager, a related party
Macquarie Infrastructure Management Incorporated [Member]
Macquarie Infrastructure Management Incorporated [Member]
Macquarie Infrastructure Management (USA) Inc. [Member]
Amendment Flag
Amendment Flag
Number of Airports
Number Of Airports
Number of Airport Locations
Number of FBO
External Independent Director [Member]
External Independent Director [Member]
Number of wind power generation facilities.
Number of Wind Power Generation Facilities
Number of wind power generation facilities
Number of Solar projects
Number Of Solar Projects
Number of solar projects
Solar Power Generation Businesses [Member]
Solar Power Generation Businesses [Member]
CP&E [Member]
Contracted Power and Energy [Member]
Percentage Of Ownership Interests Sold
Percentage Of Ownership Interests Sold
Percentage of noncontrolling interest sold
Amount of match contributions made by an employer to a defined contribution plan.
Defined Contribution Plan Employer Matching Contribution
Employer contributions - defined contribution plan
Represents information pertaining to minimum service period for eligible to participate in defined benefit plan during the reporting period.
Defined Contribution Plan, Minimum Service Period for Eligible to Participate
Minimum service period to eligible for participate
Represents information pertaining to minimum age for eligible to participate in defined benefit plan during the reporting period.
Defined Contribution Plan, Minimum Age for Eligible to Participate
Minimum age to eligible for participate
District Energy Business [Member]
District Energy Business [Member]
District Energy [Member]
Number Of Days
Number Of Days
Number of days, immediately preceding the annual meeting stockholders, to determine average closing sale price of stock
Defined Benefit Plan Estimated Future Employer Contributions Contribution Period
Defined Benefit Plan Estimated Future Employer Contributions Contribution Period
Expected employer contributions, contribution period- defined benefit plan
Represents information pertaining to consecutive period based on years of service and the employees' highest average compensation during the reporting period.
Defined Contribution Plan, Consecutive Period Based on Years of Service and Employees Highest Average Compensation
Consecutive period based on years of service and the employees' highest average compensation
Gas Production and Distribution Business [Member]
Gas Production And Distribution Business [Member]
Hawaii Gas [Member]
HG [Member]
Amount of base management fees incurred by the company for the period to its manager, a related party that was or will be settled in shares of the company.
Base Management Fee to Manager Related Party Settled in Shares
Base management fees to be settled/settled in shares
Base management fees to be settled/settled in LLC interests
Amount of performance fees incurred by the company for the period to its manager, a related party that was or will be settled in shares of the company.
Performance Fee to Manager Related Party Settled in Shares
Performance fees to be settled/settled in shares
Performance fee settled in LLC interests
Current Fiscal Year End Date
Current Fiscal Year End Date
Amount of performance fees incurred by the company for the period to its manager, a related party that was or will be settled in cash.
Performance Fee To Manager Related Party Settled In Cash
Performance fee settled in cash
The amount of performance fees reinvested in additional shares of the company.
Performance Fee Reinvested
Performance fee reinvested
Schedule Of Property Plant And Equipment Estimated Useful Lives [Table Text Block]
Schedule Of Property Plant And Equipment Estimated Useful Lives Table [Text Block]
Schedule of Estimated Economic Useful Lives of Property Plant and Equipment
Schedule of Intangible Assets Amortization Period [Table Text Block]
Intangible Assets Amortization Period Table [Text Block]
Schedule of Estimated Useful Lives of Intangible Assets
Regulatory Assets And Liabilities [Policy Text Block]
Regulatory Assets And Liabilities Policy [Text Block]
Regulatory Assets and Liabilities
Represents information pertaining to final year compensation in term of percentage under the benefit plan.
Defined Contribution Plan, Final Year Compensation, Percentage
Final year compensation (as a percentage)
Represents information pertaining to maximum compensation amount in final year under the benefit plan.
Defined Contribution Plan, Final Year Compensation, Maximum Amount
Maximum compensation amount in final year
Award Type [Axis]
Award Type [Axis]
Defined Benefit Plan Retirement Age Minimum.
Defined Benefit Plan Retirement Age Minimum
Minimum required retirement age - defined benefit plan
The additional amount of the cost recognized during the period for defined contribution plans.
Defined Contribution Plan, Additional Cost Recognized
Additional deferred compensation expense
Medical Premiums Payment
Medical Premiums Payment
Maximum monthly premium after attaining age of 64 years
Life Insurance Contracts Death Benefits To Insured
Life Insurance Contracts Death Benefits To Insured
Life insurance benefits for retirees - defined benefit plan
Document Period End Date
Document Period End Date
Defined benefit plan deferred amortization period.
Defined Benefit Plan, Deferred Amortization Period
Amortization period
Deferred Amortization period
C A [Member]
Canada- IMTT [Member]
Represents information pertaining to early retirement age under the benefit plan.
Defined Benefit Plan, Early Retirement Age
Early retirement age
Represents information pertaining to supplemental plans of entity.
Defined Benefit Supplemental Plans [Member]
Supplemental Plans [Member]
Accumulated Other Comprehensive Income Loss [Axis]
Accumulated Other Comprehensive Income Loss [Axis]
Total Members Accumulated Other Comprehensive Loss Net Of Taxes [Member]
Total Members Accumulated Other Comprehensive Loss Net Of Taxes [Member]
Expenses incurred from advisory and consulting costs.
Advisory Costs Incurred
Advisory fees
Equity Offering [Member]
Equity Offering [Member]
Equity Offering [Member]
Derivative Notional Amount
Notional amount hedged with related party
Notional amount of derivative
Idaho Wind Partners [Member].
Idaho Wind Partners [Member]
Idaho Wind Partners [Member]
Idaho Wind Partners 1, LLC (IWP Project) [Member]
Atlantic Aviation [Member]
Atlantic Aviation [Member]
Atlantic Aviation [Member]
Kansas City [Member]
Kansas City [Member]
Downtown Airport Kansas City, Missouri [Member]
Equity Bridge Loan [Member]
Equity Bridge Loan [Member]
Equity Bridge Loan [Member]
Mihi Llc [Member]
Mihi Llc [Member]
MIHI LLC [Member]
Debt Issuance Costs Amortization Period
Debt Issuance Costs Amortization Period
Debt issuance costs amortized period
Investment Project Estimated Life Term.
Investment Project Estimated Life Term
Life of Purchase Power Agreements
Hawaii Gas Business [Member].
Hawaii Gas Business [Member]
Hawaii Gas Business [Member]
Hawaii Gas Business [Member]
Leasehold Interests [Member]
Leasehold Interests [Member]
Leasehold rights [Member]
Amount of total debt outstanding at the balance sheet date that is not hedged with a derivative instrument.
Unhedged Debt
Unhedged debt
Tax Exempt Bond [Member].
Tax Exempt Bond [Member]
Macquarie Bank Limited [Member]
Macquarie Bank Limited [Member]
The share amount resulting from the "as if" assumption that stock options or restrictive stock units were exercised for purposes of computing the dilutive effect of securities.
Amount Of Dilutive Securities Stock Options And Restrictive Stock Units Shares
Potentially dilutive shares
Restricted Stock Unit Grants May Twenty One Twenty Fouteen [Member].
Restricted Stock Unit Grants May Twenty One Twenty Fourteen [Member]
Restricted stock unit grants May 21, 2014 [Member]
Restricted Stock Unit Grants May Twenty Twenty Thirteen [Member]
Restricted Stock Unit Grants May Twenty Twenty Thirteen [Member]
Restricted stock unit grants May 20, 2013 [Member]
Restricted Stock Unit Grants May Thirty One Twenty Twelve [Member]
Restricted Stock Unit Grants May Thirty One Twenty Twelve [Member]
Restricted stock unit grants May 31, 2012 [Member]
Restricted Stock Unit Grants February Twenty One Twenty Thirteen [Member]
Restricted Stock Unit Grants February Twenty One Twenty Thirteen [Member]
Restricted stock unit grants February 21, 2013 [Member]
Restricted Stock Unit Grants June Two Twenty Eleven [Member]
Restricted Stock Unit Grants June Two Twenty Eleven [Member]
Restricted stock unit grants June 2, 2011 [Member]
Restricted Stock Unit Grants August Twelve Twenty Eleven [Member]
Restricted Stock Unit Grants August Twelve Twenty Eleven [Member]
Restricted stock unit grants August 12, 2011 [Member]
International Matex Tank Terminals Acquisition [Member]
International Matex Tank Terminals Acquisition [Member]
IMTT Joint Venture Acquisition [Member]
IMTT Acquisition [Member]
The net cash outflow or inflow associated with derivative instruments, such as swaps, forwards, options, and so forth.
Payments For Proceeds From Derivatives Contracts
Payments to MBL in relation to swaps
Payment On Early Termination Of Interest Rate Swap Agreement.
Payment On Early Termination Of Interest Rate Swap Agreement
Interest rate swaps paid off
The capacity of the tank.
Tank Capacity
Tank capacity
Macquarie Energy North America Trading [Member]
Macquarie Energy North America Trading [Member]
MENAT [Member]
Sentient [Member]
Sentient [Member]
Gross carrying amount, for both finite and indefinite lived intangibles excluding goodwill, before accumulated amortization as of the balance sheet date of the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a reasonably expected period of economic benefit.
Finite And Indefinite Lived Trade Names Gross
Trade names
Dividend Thirteen [Member]
Dividend Thirteen [Member]
Dividend Twleve [Member]
Dividend Twleve [Member]
Dividend Eleven [Member]
Dividend Eleven [Member]
Dividend Ten [Member]
Dividend Ten [Member]
Dividend Nine [Member]
Dividend Nine [Member]
Dividend Eight [Member]
Dividend Eight [Member]
Dividend Seven [Member]
Dividend Seven [Member]
Dividend Six [Member]
Dividend Six [Member]
Trading Symbol
Trading Symbol
Dividend Five [Member]
Dividend Five [Member]
Dividend Four [Member]
Dividend Four [Member]
Dividend Three [Member]
Dividend Three [Member]
Dividend Two [Member]
Dividend Two [Member]
Dividend One [Member]
Dividend One [Member]
Incremental Term Loan [Member]
Incremental Term Loan [Member]
Incremental Term Loan [Member]
The percentage of income/loss allocated to the co-investor.
Percentage Of Income Loss Allocated To Coinvestor
Percentage of loss allocated to co-investor
Contracted Power Generation Facilities [Member]
Contracted Power Generation Facilities [Member]
All Other [Member]
All Other [Member]
In excess of cumulative employer contributions [Member]
Cash dividend paid to the manager, a related party
Cash Dividend Paid To Manager Related Party
Cash Paid to Manager
Until 2015 [Member]
Until Two Thousand Fifteen [Member]
Till 2015 [Member]
2016 to 2027 [Member]
Two Thousand Sixteen To Two Thousand Twenty Seven [Member]
2016 to 2027 [Member]
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
After Two Thousand Twenty Seven [Member]
After Two Thousand Twenty Seven [Member]
After 2027 [Member]
Entity Voluntary Filers
Entity Voluntary Filers
Solar Power Generation Businesses Tucson, Arizona [Member]
Solar Power Generation Businesses Tucson Arizona [Member]
Contracted Power Tucson, Arizona [Member]
Entity Current Reporting Status
Entity Current Reporting Status
Schedule of Components of Net Investment in Direct Financing Leases [Table Text Block]
Schedule Of Components Of Net Investment In Direct Financing Leases Table [Text Block]
Schedule of Components of Consolidated Net Investments in Direct Financing Leases
Entity Filer Category
Entity Filer Category
Capital Leases Net Investment In Direct Financing Leases, Terms
Capital Leases Net Investment In Direct Financing Leases Terms
Capital Leases Net Investment in Direct Financing Lease, lease terms (in years)
Entity Public Float
Entity Public Float
The number of shares or units of entity securities granted in the transaction in which equity securities were issued to pay for non-employee services.
Share Based Nonemployee Services Transaction Quantity Of Securities Granted
Stock Units Granted
Entity Registrant Name
Entity Registrant Name
Share Based Nonemployee Services Transaction Price of Stock Units Granted
Share Based Nonemployee Services Transaction Price Of Stock Units Granted
Price of Stock Units Granted
Entity Central Index Key
Entity Central Index Key
Share Based Nonemployee Services Transaction Grant Date
Share Based Nonemployee Services Transaction Grant Date
Date of Grant
Range One [Member]
Range One [Member]
Range 1 [Member]
Range Two [Member]
Range Two [Member]
Range 2 [Member]
Range 3 [Member]
Range 3 [Member]
Range 3 [Member]
Entity Common Stock Shares Outstanding
Entity Common Stock, Shares Outstanding
Range 4 [Member]
Range 4 [Member]
Range 4 [Member]
Range 5 [Member]
Range 5 [Member]
Range 5 [Member]
Range 6 [Member]
Range 6 [Member]
Range 6 [Member]
Range 7 [Member]
Range 7 [Member]
Range 7 [Member]
Range 8 [Member]
Range 8 [Member]
Range 8 [Member]
Range 9 [Member]
Range 9 [Member]
Range 9 [Member]
Range 10 [Member]
Range 10 [Member]
Range 10 [Member]
Range 11 [Member]
Range 11 [Member]
Range 11 [Member]
Range 12 [Member]
Range 12 [Member]
Range 12 [Member]
Range 13 [Member]
Range 13 [Member]
Range 13 [Member]
Megawatts capacity.
Capacity Of Plant
Capacity of Power generating units (MW)
Electricity generating capacity
The amount of goodwill acquired during prior business acquisitions, net of disposals.
Accumulated Goodwill Acquired During Prior Business Acquisitions Net Of Disposals
Goodwill acquired in business combinations, net of disposals
Share Based Nonemployee Services Transaction Vesting Date.
Share Based Nonemployee Services Transaction Vesting Date
Date of Vesting
Reflects the carrying amounts of current lease financing receivables net of unearned income and the allowance for losses on lease financings.
Equipment Lease Receivable Current
Equipment lease receivables current
Reflects the carrying amounts of non-current lease financing receivables net of unearned income and the allowance for losses on lease financings.
Equipment Lease Receivable Noncurrent
Equipment lease receivables non-current
Long-term portion
Reflects the total carrying amounts of current and non-current lease financing receivables net of unearned income and the allowance for losses on lease financings.
Equipment Lease Receivable Total
Equipment Lease Receivable, Total
Represents the number of shares issued to the manager, a related party, to settle the base management fees and performance fees, if any, for the period.
Number Of Shares Issued To Manager For Base Management Performance Fees
Shares Issued
Document Fiscal Year Focus
Document Fiscal Year Focus
Represents the number of shares reinvested by the manager, a related party, for base management and performance fees subsequent to the balance sheet date.
Number Of Shares Issued To Manager For Subsequent Base Management And Performance Fees
Shares Issued, subsequent base management and performance fees
Document Fiscal Period Focus
Document Fiscal Period Focus
Estimated maximum number of years for remediation.
Maximum Range for Remediation
Maximum number of years for remediation activities
Estimated minimum number of years for remediation.
Minimum Range for Remediation
Minimum number of years for remediation activities
Cash dividends or other distributions received from consolidated subsidiaries that are returns of capital.
Proceeds From Investment Dividends Or Distributions Return Of Capital
Capital return from investment
Solar Power Generation Businesses Presidio, Texas [Member]
Solar Power Generation Businesses Presidio Texas [Member]
Contracted Power Presidio, Texas [Member]
Defined Benefit Plan, Measurement Period
Defined Benefit Plan Measurement Period
Measurement date
Number Of Debt Instruments
Number Of Debt Instruments
Number of term loans
The cash contributed to the investment/subsidiary by the company.
Capital Contribution To Investment Or Subsidiary
Capital investment
The amount by which the purchase price of the acquisition was adjusted during the period.
Business Acquisition Purchase Price Adjustment
Purchase price adjustment
Davis Montham Air Force Base [Member]
Davis Monthan Air Force Base [Member]
Davis Monthan Air Force Base [Member]
Valley Center [Member]
Valley Center [Member]
Valley Center [Member]
Defined Benefit Plan, Asset Allocations [Axis]
Defined Benefit Plan Asset Allocations [Axis]
Defined Benefit Plan, Asset Allocations [Axis]
Term Loan One [Member]
Term Loan One [Member]
Term Loan One [Member]
Document Type
Document Type
Term Loan Two [Member]
Term Loan Two [Member]
Term Loan Two [Member]
Cash And Money Market [Member]
Cash And Money Market [Member]
Cash and money market [Member]
Entity Number Of Employees
Number of employees
Us Equity Securities [Member]
Us Equity Securities [Member]
Equity securities - U.S. [Member]
International Equity Securities [Member]
International Equity Securities [Member]
Equity securities - International [Member]
Defined Benefit Plan, Total Expected Future Benefit Payments
Defined Benefit Plan Expected Future Benefit Payments Total
Total
Gross amount, at the balance sheet date, of long-lived, depreciable assets that represents the right to utilize private/third-party real estate space.
Easements Gross
Easements
Amount of payable to the manager, a related party, for base management fees, performance fees, if any, out of pocket expenses and any current liabilities due to manager.
Due To Manager Related Party
Due to manager - related party
Ramona [Member]
Ramona [Member]
Ramona [Member]
Carrying value as of the balance sheet date of obligations related to notes payable and capital leases. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).
Notes Payable And Capital Leases Current
Current portion of notes payable and capital leases
Sum of the carrying values as of the balance sheet date of all notes payable, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer, plus capital lease obligations due to be paid more than one year after the balance sheet date.
Notes Payable And Capital Leases Noncurrent
Notes payable and capital leases, net of current portion
Tax basis gain (loss) as a result of divestiture of business.
Tax Basis Gain Loss From Divestiture Of Business
Taxable gain on sale of business
Summary of Significant Accounting Policies [Abstract]
Schedule of Changes in Projected Benefit Obligations and Changes in Plan Assets [Table Text Block]
Schedule Of Changes In Projected Benefit Obligations And Changes In Plan Assets Table [Text Block]
Additional Information About Fair Value of Benefit Plan Assets Components of Net Periodic Cost and Projected Benefit Obligation
Schedule of Weighted Average Asset Allocation [Table Text Block]
Schedule Of Weighted Average Asset Allocation Table [Text Block]
DB Plan Weighted Average Asset Allocation
Brahms Project [Member]
Brahms Project [Member]
Variable term loan with interest rate floor on minimum LIBOR rate.
Variable Term Loan Interest Rate Floor
Variable term loan Interest rate floor
Total amount of the interest portion on equipment lease earned during the period.
Financing Equipment Lease Income Net
Financing and equipment lease income
Financing and equipment lease income
Amount of base management fees and performance fees, if any, incurred by the company for the period to its manager, a related party.
Fees To Manager Related Party
Fees to manager - related party
Fees to manager
Percentage of debt outstanding hedged as of the balance sheet date.
Percentage Of Outstanding Debt Hedged
Percentage of outstanding debt hedged
Total Term Debt [Member].
Total Term Debt [Member]
Total Term Debt [Member]
Operating Loss Carryforwards Subject To Limitation
Operating Loss Carryforwards Subject To Limitation
Net operating loss carry-forwards, subject to limitation
Gain (loss) as a result of business combination, step acquisition and divestiture of business.
Gain (Loss) from Acquisition and Divestiture of Business
Pre-tax gain on acquisition of business
Gain from acquisition/divestiture of businesses
Gain from acquisition/divestiture of businesses
Total Deferred Income Tax Expense (Benefit)
Total Deferred Income Tax Expense Benefit
Total deferred tax (benefit) provision
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from lease transaction costs
Deferred Tax Assets Leasing Transaction Costs
Lease transaction costs
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation recorded in both depreciation expense and cost of services on the statement of operations.
Depreciation Expense And Depreciation In Cost Of Service
Depreciation
Depreciation and amortization of property and equipment
Depreciation
The non-cash gains (losses) included in earnings resulting from the sale or disposal of tangible assets. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property.
Noncash Gain Loss On Disposition Of Assets
(Loss) gain on disposal of assets
Loss (gain) on disposal of assets
Loss (gain) on disposal of assets
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accrued Expenses
This item represents the portion of the base management fee which was/will be reinvested in the shares of the company.
Base Management Fees Settled In Shares
Base management fees to be settled/settled in shares
This item represents the portion of the performance fee which was/will be reinvested in the shares of the company.
Performance Fees Settled In Shares
Performance fees settled in shares
Accrued Expenses [Abstract]
The net amount of equipment lease principal payments received during the reporting period.
Equipment Lease Receivable Net
Equipment lease receivable, net
The net change during the reporting period in the cumulative difference between actual rent paid and rental expense recognized on a straight-line basis.
Increase Decrease In Deferred Rent
Deferred rent
The net change during the reporting period for amounts payable in cash to the manager, a related party, for base management fees, performance fees, if any, out of pocket expenses and any current liabilities due to manager.
Increase Decrease In Due To Manager Related Party
Due to manager - related party
Income Tax Reconciliation Taxable Dividend in Excess of Book Income
Income Tax Reconciliation Taxable Dividend In Excess Of Book Income
District energy business taxable dividend income in excess of book income
Income Tax Reconciliation Book Income in Excess of Taxable Dividend
Income Tax Reconciliation Book Income In Excess Of Taxable Dividend
IMTT book income in excess of taxable dividend, pre-acquisition
Income Tax Reconciliation Increase in Book Basis in Excess of Tax Basis
Income Tax Reconciliation Increase In Book Basis In Excess Of Tax Basis
Change in book basis in excess of tax basis in IMTT, pre-acquisition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to gain (loss) on fair valuation of existing investment in IMTT.
Income Tax Reconciliation Gain (Loss) On Fair Valuation Of Existing Investment In Imtt
Gain on fair valuation of existing investment in IMTT
Gain on remeasuring to fair value on previous 50% investment in IMTT
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to gain (loss) on sale of district energy business.
Income Tax Reconciliation Gain (Loss) on Sale of District Energy Business
Gain on sale of district energy business
Gain on sale of district energy business
Amount of accrued expenses incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accrued Expenses
Accrued expenses
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee, at the date of remeasuring to fair value.
Equity Method Investments Carrying Value
Less: Write-off of equity method investment
The write off of accumulated other comprehensive income (loss) for the business combination.
Business Combination Write Off Of Accumulated Other Comprehensive Income Loss
Less: Write-off of accumulated other comprehensive loss
The amount of equity issuance costs that were incurred during a noncash or partial noncash transaction.
Equity Issuance Costs Incurred During Noncash Or Partial Noncash Transaction
Accrued equity offering costs
This item represents the portion of the performance fee which was reinvested in the shares of the company.
Issuance Of Shares To Manager For Performance Fees
Issuance of shares to manager for performance fees
This item represents the portion of the base management fee which was reinvested in the shares of the company.
Issuance Of Shares To Manager For Base Management Fees
Issuance of shares to manager for base management fees
Shares issued to independent directors pursuant to the directors'' compensation plan.
Issuance Of Shares To Independent Directors
Issuance of shares to independent directors
Accounts Receivable Net Current
Accounts receivable, less allowance for doubtful accounts of $771 and $953, respectively
Receivable from related party
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods acquired at the acquisition date.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expenses
Prepaid expenses
Prepaid and other current assets
Represents the company's dividend reinvestment/direct stock purchase program.
Macquarie Infrastructure Company Direct Program [Member]
MIC Direct [Member]
The percentage of income/loss allocated to the co-investor that would be subsequently flipped.
Percentage Of Income Loss Flipped
Percentage of loss flipped
Accumulated Other Comprehensive Income Loss [Domain]
Accumulated Other Comprehensive Income Loss [Domain]
Additional Power Generation Facilities [Member]
Additional Power Generation Facilities [Member]
The acquisition percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.
Equity Method Investment Ownership Percentage Acquired
Acquisition of ownership percentage
Capital contribution from parent to subsidiary.
Capital Contribution To Subsidiary
Capital contribution from parent to sub
The cash outflow by reportable segment associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.
Capital Expenditure For Report Segment [Table Text Block]
Schedule of Capital Expenditures
Capital Expenditure Loan Facility [Member]
Capital Expenditure Loan Facility [Member]
Capital Loss Carryback Amount
Capital Loss Carryback Amount
Capital loss carried back
Write off of assets that are not covered by insurance resulting in a net gain or loss.
Casualty Gain Loss Net
Casualty losses, net
Common Stock Equity [Line Items]
Common Stock Equity [Line Items]
Common Stock Equity [Line Items]
Common Stock Equity [Table]
Common Stock Equity [Table]
Common Stock Equity [Table]
Common Stock, Shares Dividend Paid On
Common Stock Shares Dividend Paid On
Dividends to shareholders, shares on which dividend paid
Cooling capacity revenue is a component of cooling revenue that relates to monthly fixed contracted charges. Capacity charges are typically adjusted annually at a fixed rate or are indexed to the Consumer Price Index.
Cooling Capacity Revenue
Cooling capacity revenue
Cooling consumption revenue is a component of cooling revenue that relates to contractual rates applied to actual usage.
Cooling Consumption Revenue
Cooling consumption revenue
Corporate Income Tax Rate
Corporate Income Tax Rate
Corporate income tax rate
Costs of synthetic fuel produced from petroleum, natural gas, and/or biofuel feedstock, and direct transmission and distribution costs.
Cost Of Goods Sold Utility
Cost of product sales - utility
Debt Disclosure [Line Items]
Debt Disclosure [Line Items]
Debt Disclosure [Line Items]
Debt Disclosure [Table]
Debt Disclosure [Table]
Debt Disclosure [Table]
Debt instrument ownership percentage covenant that triggers mandatory repayment of debt.
Debt Instrument Ownership Covenant
Minimum ownership/controlling interest of borrowers to avoid mandatory repayment
The ticking fee for the debt instrument.
Debt Instrument Ticking Fee
Ticking fee
Debt To Total Capital
Debt To Total Capital
Ratio of consolidated debt to total capital
Defined Benefit Plan, Asset Allocations [Domain]
Defined Benefit Plan Asset Allocations [Domain]
Defined Benefit Plan, Asset Allocations [Domain]
Document Documentand Entity Information [Abstract]
Document Documentand Entity Information [Abstract]
EBITDA consists of earnings before interest, taxes, depreciation and amortization. Non-cash items that are excluded consist of impairments, derivative gains and losses and all other non-cash income and expense items.
Earnings Before Interest Taxes Depreciation And Amortization Excluding Non Cash Items
EBITDA excluding non-cash items
EBITDA excluding non-cash items
Total reportable segments EBITDA excluding non-cash items
Existing Debt Instruments [Member]
Existing Debt Instruments [Member]
Existing Debt Instruments [Member]
Accounts Payable Current
Accounts payable
Federal Funds Rate [Member]
Federal Funds Rate [Member]
Federal [Member]
Federal [Member]
Federal [Member]
Interest portion on equipment lease earned during the period.
Finance Equipment Lease
Financing and equipment lease
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income Taxes [Table]
Income Taxes [Table]
Income Taxes [Table]
Increase Decrease In Deferred Tax Assets Valuation Allowance
Increase Decrease In Deferred Tax Assets Valuation Allowance
Deferred tax assets valuation allowance, decrease
Interest rate swap breakage fees incurred in connection with mandatory prepayment of principal debt in accordance with debt agreement.
Interest Rate Swap Breakage Fees
Interest rate swap breakage fees
Leases Disclosure [Line Items]
Leases Disclosure [Line Items]
Leases Disclosure [Line Items]
Leases Disclosure [Table]
Leases Disclosure [Table]
Leases Disclosure [Table]
Ratio of funded debt net of unrestricted cash and cash equivalents to combined earnings before interest, taxes, depreciation and amortization (EBITDA), as defined by the debt agreement.
Leverage Ratio
Distribution covenants, leverage ratio
Mandatory prepayment, leverage ratio
The annual amortization, expressed as a percentage of the original principal amount.
Line Of Credit Facility Amortization Percentage
Amortization
Minimum cash requirement covenant.
Minimum Cash Requirement
Readily available cash resources
Minimum Period for Employer Contribution to Defined Benefit Plan
Minimum Period For Employer Contribution To Defined Benefit Plan
Collective bargaining agreement period - defined benefit plan
Minimum Service Period Required To Avail Postretirement Benefits
Minimum Service Period Required To Avail Postretirement Benefits
Required service period before retirement - defined benefit plan
Number of Regulatory Requirement
Number Of Regulatory Requirement
Number of regulatory conditions
The number of solar projects acquired during the period.
Number Of Solar Projects Acquired
Number of solar projects acquired
Number of Wind Projects
Number of wind projects
Operating Loss Carryforwards Limitation Per Year
Operating Loss Carryforwards Limitation Per Year
Net operating loss carry forwards annual utilization in 2012 through 2014
Operating Loss Carryforwards, Period Increase (Decrease)
Operating Loss Carryforwards Period Increase Decrease
Net operating loss carry forwards, decrease
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Table]
Organization Consolidation And Presentation Of Financial Statements Disclosure [Table]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Table]
Percentage of an entity's outstanding debt that is not designated as a hedged item in cash flow, fair value, or net investment hedge.
Percentage Of Debt Hedged By Interest Rate Derivatives Non Designated
Percentage of debt hedged with Interest rate swaps
Represents the percentage of excess cash generated during a reporting period, applied towards required prepayment of debt, as defined in the loan agreement.
Percentage Of Excess Cash Generated To Prepay Debt
Percentage of excess cash flow to prepay debt
Percentage Of Ownership Interest Sold
Percentage Of Ownership Interest Sold
Sale of ownership interest in District Energy
Percentage of Tax Depreciation
Percentage Of Tax Depreciation
50% Bonus Depreciation
Postretirement Age to Pay Medical Premium for Retirees and Spouses Maximum
Postretirement Age To Pay Medical Premium For Retirees And Spouses Maximum
Maximum age limit to provide medical premium for retirees and spouses - defined benefit plan
Tabular disclosure of the carrying amounts of property, plant and equipment, goodwill and total assets by reportable operating segment information.
Property Plant Equipment Goodwill And Total Assets Reportable Segment [Table Text Block]
Schedule of Assets of Reportable Segments
Range 1 [Member]
Range 1 [Member]
Taxable years beginning on or after January 1, 2015 and prior to January 1, 2025 [Member]
Range 2 [Member]
Range 2 [Member]
Taxable years beginning on or after January 1, 2025 [Member]
Reportable Segment One [Member]
Reportable Segment One [Member]
Reportable Segment [Member]
Required principal debt repayment in accordance with debt agreement.
Required Principal Debt Repayment
Excess cash flow used for prepayment of outstanding principal balance of term loan debt
Required principal debt repayment in accordance with debt agreement, including fees incurred for interest rate swap breakage fees.
Required Principal Debt Repayment And Interest Rate Swap Fees Incurred
Excess cash flow used for prepayment of outstanding principal balance of term loan debt and interest rate swap breakage fees
Restricted Stock Unit Grants June Three Twenty Ten [Member]
Restricted Stock Unit Grants June Three Twenty Ten [Member]
Restricted stock unit grants June 3, 2010 [Member]
Revenue derived from the regulated (by a federal, state, or local government or agency) transmission and distribution of gas.
Sales Revenue Utility Net
Product sales - utility
Revenue from product sales - utility
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Table]
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Table]
Schedule Of Defined Contribution Pension And Other Postretirement Plans Disclosure [Table]
Schedule Of Future Minimum Lease Payments To Be Received Under Direct Financing Leases [Table Text Block]
Schedule Of Future Minimum Lease Payments To Be Received Under Direct Financing Leases Table [Text Block]
Schedule of Future Minimum Lease Payments to be Received
Schedule of Pension and Other Postretirment Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Line Items]
Schedule Of Pension And Other Postretirment Benefits Changes In Benefit Obligation And Fair Value Of Plan Assets [Line Items]
Schedule of Pension and Other Postretirment Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Line Items]
Schedule of Pension and Other Postretirment Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Table]
Schedule Of Pension And Other Postretirment Benefits Changes In Benefit Obligation And Fair Value Of Plan Assets [Table]
Schedule of Pension and Other Postretirment Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Table]
Schedule of Pension and Other Postretirment Benefits Expected Benefit Payments [Line Items]
Schedule Of Pension And Other Postretirment Benefits Expected Benefit Payments [Line Items]
Schedule of Pension and Other Postretirment Benefits Expected Benefit Payments [Line Items]
Schedule of Pension and Other Postretirment Benefits Expected Benefit Payments [Table]
Schedule Of Pension And Other Postretirment Benefits Expected Benefit Payments [Table]
Schedule of Pension and Other Postretirment Benefits Expected Benefit Payments [Table]
Second Amended And Restated Management Service Agreement [Member]
Second Amended And Restated Management Service Agreement [Member]
Segment Information by Secondary Segment [Domain]
Segment Information By Secondary Segment [Domain]
Segment Information by Secondary Segment [Domain]
Segment Reporting, Assets
Segment Reporting Assets
Total Assets
Total assets of reportable segments
Segment Reporting Information, by Secondary Segment [Axis]
Segment Reporting Information By Secondary Segment [Axis]
Segment Reporting Information, by Secondary Segment [Axis]
Senior Secured Term Loan Facility [Member]
Senior Secured Term Loan Facility [Member]
Senior Secured Term Loan Facility [Member]
U S [Member]
United States- IMTT [Member]
Shares Activity [Line Items]
Shares Activity [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
State [Member]
State [Member]
State [Member]
The dollar threshold of condemnation proceeds which requires mandatory prepayment as defined in the loan agreement if not used to repair, restore, or replace assets.
Term Loan Credit Facility Madatory Prepayment Threshold Condemnation Proceeds
Mandatory prepayment - dollar threshold of condemnation proceeds
The dollar threshold of insurance proceeds which requires mandatory prepayment as defined in the loan agreement if not used to repair, restore, or replace assets.
Term Loan Credit Facility Madatory Prepayment Threshold Insurance Proceeds
Mandatory prepayment - dollar threshold of insurance proceeds
The dollar threshold of net proceeds from the sale of assets which requires mandatory prepayment as defined in the loan agreement if not reinvested.
Term Loan Credit Facility Madatory Prepayment Threshold Net Proceeds Sale Of Assets Not Reinvested
Mandatory prepayment - dollar threshold of net proceeds from the sale of assets that are not reinvested
Term Loan Facility [Member]
Term Loan Facility [Member]
The prepayment fee if the term loan facility is paid prior to the maturity date, expressed as a percentage of the outstanding balance.
Term Loan Facility Prepayment Fee Percentage
Optional repayment, prepayment penalty percentage
The carrying amount as of the balance sheet date of the total asset balance at the corporate level, including intersegment assets eliminated in segment reporting.
Total Assets Corporate And Other
Corporate and other
Total distribution amount declared from equity method investment to all of its shareholders for the period.
Total Distribution Declared To All Shareholders From Equity Method Investment
Total distribution amount declared to all shareholders from equity method investment
Total distribution amount declared from equity method investment to each investor for the period.
Total Distribution Declared To Each Investor From Equity Method Investment
Total distribution amount declared to each investor from equity method investment
Total distribution amount paid from equity method investment to all of its shareholders for the period.
Total Distribution Paid To All Shareholders From Equity Method Investment
Total distribution amount paid to all shareholders from equity method investment
Total distribution amount paid from equity method investment to the Company for the period.
Total Distribution Paid To Company From Equity Method Investment
Total distribution amount paid to the Company from equity method investment
Total distribution amount paid from equity method investment to each investor for the period.
Total Distribution Paid To Each Investor From Equity Method Investment
Total distribution amount paid to each investor from equity method investment
Accrual for Taxes Other than Income Taxes, Current
Real estate
Total Reportable Segments [Member]
Total Reportable Segments [Member]
Total reportable segments [Member]
Total revenue from product sales during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.
Total Revenue From Product Sales Net
Total Revenue from Product Sales
The amount of fair valuation adjustment to noncontrolling interest on acquisition.
Business Acquisition Fair Valuation Adjustment to Non Controlling Interest on Acquisition
Fair valuation adjustment to noncontrolling interest on acquisition
Contracted Power and Energy [Member]
Contracted Power And Energy [Member]
Contracted Power and Energy Businesses [Member]
Contracted Power and Energy Businesses [Member]
Reportable Segment [Member]
Reportable Segment [Member]
Reportable Segment [Member]
Tax-exempt Bonds [Member].
Tax Exempt Bonds [Member]
Tax-exempt bonds [Member]
Loan From Previous Shareholder [Member].
Loan From Previous Shareholder [Member]
Loan From Previous Shareholder [Member]
Gulf Opportunity Zone Bonds One [Member]
Gulf Opportunity Zone Bonds One [Member]
Gulf Opportunity Zone Bonds Two [Member]
Gulf Opportunity Zone Bonds Two [Member]
Gulf Opportunity Zone Bonds Three [Member]
Gulf Opportunity Zone Bonds Three [Member]
Gulf Opportunity Zone Bonds Four [Member]
Gulf Opportunity Zone Bonds Four [Member]
New Jersey Economic Development Authority Dock Facility Revenue Refund Bonds [Member]
New Jersey Economic Development Authority Dock Facility Revenue Refund Bonds [Member]
New Jersey Economic Development Authority Variable Rate Demand Revenue Refunding Bonds [Member]
New Jersey Economic Development Authority Variable Rate Demand Revenue Refunding Bonds [Member]
Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities Long Term Debt
Debt balance
Amortizing term loan debt assumed
Percent of interest in affiliates pledged as collateral for borrowings under the credit facility.
Line Of Credit Facility, Collateral, Percent Of Interest In Affiliates
Percent of share in affiliates pledged
Accrued Insurance, Current
Insurance
The term for which the variable rate has been at a fixed percentage.
Debt Instrument Interest Rate Fixed Percentage Term
Hedging instrument, term
The percentage of the 30-day variable rate to determine the interest rate on the debt instrument.
Debt Instrument Percentage Of Variable Rate
Percentage of 30-day LIBOR
Amount of operating loss carryforwards that the Company will not be able to utilize.
Operating Loss Carryforwards Expected To Be Utilized
Federal prior year NOLs that will not be utilized
Distributions payable to noncontrolling interest members at period end.
Distributions Payable To Noncontrolling Interest
Distributions payable to noncontrolling interests
The non-cash gains (losses) included in earnings as a result of business combination, step acqusition and divestiture of business.
Noncash Gain (Loss) From Acquisition And Divestiture Of Business
Gain from acquisition/divestiture of businesses
Gain from acquisition/divestiture of businesses
Bayonne Terminal Employees [Member]
Bayonne Terminal Employees [Member]
The amount of restricted cash recognized as of the acquisition date.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Restricted Cash
Restricted cash
Represents information pertaining to 2014 wind power generation facilities.
Wind Power Generation Facilities 2014 [Member]
2014 wind power generation facilities [Member]
Represents information pertaining to solar power generation facilities acquired in year 2012.
Solar Power Generation Facilities Acquired in 2012 [Member]
Solar power generation facilities acquired in 2012 [Member]
Represents information pertaining to solar power generation facilities acquired in year 2013.
Solar Power Generation Facilities Acquired in 2013 [Member]
Solar power generation facilities acquired in 2013 [Member]
Amount of performance fees incurred by the company for the period to its manager that was reinvested in shares.
Performance Fee to Manager Related Party Reinvested in Shares
Performance fees that was reinvested in shares
Represents the amount of distributions payable to noncontrolling interests in non-cash investing and financing activities.
Distributions Payable to Noncontrolling Interests
Distributions payable to noncontrolling interests
Distributions payable to noncontrolling interests
The term of collective bargaining agreement.
Collective Bargaining Agreement Term
Collective bargaining agreement
The period after which benefit increases will occur annually.
Period after Which Increases in Benefit Will Occur Annually
Period after which benefit increases will occur annually
The dollar threshold of guaranteed performance commitment which requires mandatory prepayment as defined in the loan agreement if not used to repair, restore, or replace assets.
Term Loan Credit Facility Madatory Prepayment Threshold Guaranteed Performance Commitment
Mandatory prepayment - dollar threshold of Guaranteed Performance commitment
The minimum period for which business is not expected to make contributions.
Minimum Period For Which Business Is Not Expected To Make Contributions
Minimum period for which business is not expected to make contributions
Represents information pertaining to BEC.
Bec [Member]
BEC [Member]
The percentage of energy generating capacity for which acquiree has creditworthy off-taker.
Percentage Of Energy Generating Capacity For Which Acquiree Has Creditworthy Off Taker
Percentage of energy generating capacity for which acquiree has creditworthy off-taker
Net adjustment to noncontrolling interest due to fair value adjustment from business combinations and/or elimination upon deconsolidations.
Change In Noncontrolling Interest From Acquisitions Dispositions
Net adjustment to noncontrolling interest from acquisitions/disposition
Number of wind turbines.
Number Of Wind Turbines
Number of wind turbines
Solar Power Generation Facilities [Member].
Solar Power Generation Facilities [Member]
Changes in the fixed margin portion of the debt instruments over time.
Change In Debt Instrument Fixed Margin
Change in fixed margin
Interest Rate Swap And Commodity Swap [Member].
Interest Rate Swap And Commodity Swap [Member]
Interest Rate Swaps and Commodity Swaps [Member]
Losses On Derivative Contracts [Member].
Losses On Derivative Contracts [Member]
Losses on Derivative Contracts [Member]
Twenty Fourteen Independent Director Equity Plan [Member].
Twenty Fourteen Independent Director Equity Plan [Member]
2014 Independent Director Equity Plan [Member]
Number of shares authorized under Director Equity Plan.
Shares Authorized Under Director Equity Plan
Shares authorized under 2014 Independent Director Equity Plan
The aggregate grant date fair value of awards
granted to an independent director during any single fiscal year.
Maximum Fair Value Of Award Grant Date
Fair Value of awards granted
Non Reportable Segment [Member].
Non Reportable Segment [Member]
Non Reportable Segment [Member]
Accrued Liabilities Current
Accrued expenses
Accrued expenses
Amount of performance fees incurred by the company for the period to its manager, a related party that was or will be settled in shares of the company and cash.
Performance Fee To Manager Related Party Settled In Shares And Or Cash
Performance fees to be settled/settled in shares and cash
Federal And State [Member].
Federal And State [Member]
Federal and State [Member]
Expected federal taxable income (loss) for the period.
Expected Federal Taxable Income (Loss) For Period
Federal Taxable Loss
Pensions Plans Defined Benefit And Union [Member].
Pensions Plans Defined Benefit And Union [Member]
DB and Union Plans [Member]
Period Of Average Discount Rate Defined Benefit Under Statutory Funding Formulas.
Period Of Average Discount Rate Defined Benefit Under Statutory Funding Formulas
Period of average discount rate for defined benefit plans under statutory funding formulas
The statutory funding percentage of a defined benefit plan at period end.
Statutory Funding Percentage
Statutory funding percentage
Weighted average life of tolling agreements.
Weighted Average Life Of Tolling Agreements
Weighted average remaining life of tolling agreements
One Month Libor [Member].
One Month Libor [Member]
One-month LIBOR [Member]
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Less: accumulated depreciation
Accumulated Other Comprehensive Income Loss Net Of Tax
Ending Balance
Beginning Balance
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Member]
Total Accumulated Other Comprehensive Loss, net of taxes [Member]
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member]
Cash Flow Hedges, net of taxes [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Translation Adjustment [Member]
Translation Adjustment, net of taxes [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Assets [Line Items]
Additional Paid In Capital Common Stock
Additional paid in capital
Additional Paid-in Capital [Member]
Additional Paid in Capital [Member]
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:
Advertising Costs, Policy [Policy Text Block]
Advertising
NJEDA Bonds [Member]
Allowance For Doubtful Accounts Receivable Current
Accounts receivable, allowance for doubtful accounts
Amortization Of Financing Costs
Amortization of debt financing costs
Amortization Of Intangible Assets
Amortization of intangible assets
Amortization of intangibles
Amortization of intangibles
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive securities
Asset Impairment Charges
Asset impairment charges
Assets
Total assets
Total assets
Assets, Fair Value Disclosure
Fair value of wind turbines
Assets Current [Abstract]
Current assets:
Assets [Abstract]
ASSETS
Assets Current
Total current assets
Base Rate [Member]
Alternate Base Rate [Member]
Basis Swap [Member]
LIBOR Swap [Member]
Bonds [Member]
GO Zone Bonds [Member]
Building [Member]
Buildings [Member]
Buildings And Improvements Gross
Buildings
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets
Prepaid and other current assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable
Accounts payable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities
Total current liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Accounts receivable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt
Current portion of long term debt
Current portion of amortizing term loan debt assumed
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent
Deferred income taxes
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets
Total current assets
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other
Other noncurrent liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Total assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents
Cash and cash equivalents
Business acquisition, cash paid
Business Acquisition, Pro Forma Information [Table Text Block]
Schedule of Pro Forma Results
Business Combination, Contingent Consideration, Liability
Amount expected for Boca Aviation Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other
Restricted cash - current
Other current assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities
Noncurrent liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets
Other noncurrent assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt
Amortizing term loan debt assumed
Debt assumed, excluding transaction costs
Amortizing term loan debt assumed
Long-term debt, net of current portion
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Total liabilities assumed
Total liabilities assumed
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired
Equity interest acquired
Interest acquired
Business Acquisition, Pro Forma Revenue
Revenue
Business Acquisition Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Pro Forma Net Income (Loss)
Net income attributable to MIC LLC
Acquisitions and Disposition [Abstract]
Business Combination, Consideration Transferred
Purchase price
Net assets paid
Business acquisition, purchase price
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other
Current liabilities
Other current liabilities
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain
Fair value gain on previously held interest in equity method investee recognised on business acquisition
Gain from acquisition/divestiture of businesses
Less: Gain on remeasuring the equity method investment to fair value
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory
Inventories
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Property, equipment, land and leasehold improvements
Property, equipment, land and leasehold improvements acquired
Business Acquisition, Goodwill, Expected Tax Deductible Amount
Goodwill deductible for tax purposes
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Net assets acquired
Business acquisition, purchase price
Business Combination, Acquisition Related Costs
Transaction related costs
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value
Noncontrolling interest
Capital Leases, Future Minimum Payments Due in Five Years
2019
Capital Leases, Future Minimum Payments Due in Four Years
2018
Capital Leases, Future Minimum Payments Due
Present value of minimum payments
Capital Leases, Future Minimum Payments Due in Three Years
2017
Capital Leases, Balance Sheet, Assets by Major Class, Net
Book Value of equipment under capital lease
Capital Leases, Future Minimum Payments, Receivable in Three Years
2016
Capital Leases, Future Minimum Payments Receivable, Next Twelve Months
2014
Capital Lease Obligations, Current
Current portion of capital leases
Less: current portion
Capital Lease Obligations, Noncurrent
Long-term portion
Capital leases, net of current portion
Capital Leases, Future Minimum Payments, Receivable Due Thereafter
Thereafter
Capital Leases, Future Minimum Payments Due in Two Years
2016
Capital Leases, Future Minimum Payments, Receivable in Two Years
2015
Capital Leases, Future Minimum Payments Due, Next Twelve Months
2015
Capital Leases, Future Minimum Payments, Receivable in Five Years
2018
Capital Expenditures Incurred But Not Yet Paid
Accrued purchases of property and equipment
Capital Leases in Financial Statements of Lessor Disclosure [Text Block]
Direct Financing Lease Transactions
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases
Capital Leases, Future Minimum Payments Due Thereafter
Thereafter
Capital Lease Obligations Incurred
Acquisition of equipment through capital leases
Capital Leases, Future Minimum Payments, Receivable in Four Years
2017
Capital Leases in Financial Statements of Lessee Disclosure [Text Block]
Capital Leases
Capital Leases, Future Minimum Payments Receivable
Total
Direct Financing Lease Transactions [Abstract]
Capital Leases, Net Investment in Direct Financing Leases, Minimum Payments to be Received
Minimum lease payments receivable
Capital Leases, Net Investment in Direct Financing Leases
Net investment in direct financing leases
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Equipment lease:
Capital Leases, Net Investment in Direct Financing Leases, Deferred Income
Less: unearned financing lease income
Capitalized Computer Software, Gross
Technology
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and Cash Equivalents
Cash And Cash Equivalents Period Increase Decrease
Net change in cash and cash equivalents
Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
Net derivative losses, included in accumulated other comprehensive loss, reclassified over next 12 months
Cash [Member]
Cash [Member]
Cash And Cash Equivalents At Carrying Value
Cash and cash equivalents, end of period
Cash and cash equivalents, beginning of period
Cash and cash equivalents
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Restricted Cash
Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract]
Non-cash investing and financing activities:
Class Of Stock [Line Items]
Class of Stock [Line Items]
Commercial Paper, at Carrying Value
Commercial paper
Legal Proceedings and Contingencies [Abstract]
Commitments And Contingencies
Commitments and contingencies
Commodity Contract [Member]
Commodity swaps [Member]
Common Stock [Member]
Shares [Member]
Common Stock Value
LLC interests, or shares, no par value; 500,000,000 authorized; 71,089,590 shares issued and outstanding at December 31, 2014 and 56,295,595 shares issued and outstanding at December 31, 2013
Common Stock Shares Issued
Shares, issued
Common Stock Dividends Per Share Declared
Cash dividends declared per share
Common Stock Shares Authorized
Shares, authorized
Shares, authorized
Common Stock No Par Value
Shares, no par value
Common Stock, Dividends, Per Share, Cash Paid
Dividends to shareholders, per share
Common Stock Shares Outstanding
Balance (in shares)
Balance (in shares)
Shares, outstanding
Comprehensive Income Net Of Tax
Comprehensive income attributable to MIC LLC
Comprehensive Income, Policy [Policy Text Block]
Comprehensive Income
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
Less: comprehensive (loss) income attributable to noncontrolling interests
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
Comprehensive income
Computer Software, Intangible Asset [Member]
Software [Member]
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Concentrations of Credit Risk
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Sale of Interest by Parent
Sale of District Energy business
Consolidation, Policy [Policy Text Block]
Principles of Consolidation
Construction In Progress Gross
Construction in progress
Construction Loan
Construction loan
Construction Loan
Contractual Rights [Member]
Contract arrangements [Member]
Contract arrangements [Member]
Convertible Debt [Member]
Convertible Debt [Member]
Convertible Debt
Convertible senior notes
Corporate Segment [Member]
MIC Corporate [Member]
Cost Of Goods Sold
Cost of product sales
Cost Method Investment
Cost Method Investment in unconsolidated business
Cost Of Services
Cost of services
Costs And Expenses [Abstract]
Costs and expenses
Costs And Expenses
Total operating expenses
Selling, general and administrative - corporate
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Current State and Local Tax Expense (Benefit)
State
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current taxes:
Current Federal Tax Expense (Benefit)
Federal
Current Income Tax Expense (Benefit)
Total current tax provision
Customer Relationships [Member]
Customer relationships [Member]
Customer Deposits, Current
Customer deposits
Debt Instrument, Interest Rate, Increase (Decrease)
Increase in interest rate every three years through maturity
Debt Instrument, Description of Variable Rate Basis
Description of Variable Rate Basis
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Debt Instrument [Table]
Schedule of Long-term Debt Instruments [Table]
Debt Conversion, Original Debt, Amount
Conversion of construction loan to term loan
Debt Instrument, Face Amount
Total debt principal at issuance
Debt Instrument, Basis Spread on Variable Rate
Interest spread above LIBOR
Fixed portion of interest rate component
Debt [Member]
Debt [Member]
Long-Term Debt [Abstract]
Debt Conversion, Converted Instrument, Amount
Conversion of construction loan to term loan
Debt Instrument, Convertible, Conversion Ratio
Conversion rate
Debt Instrument, Term
Debt instrument, term
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt, Weighted Average Interest Rate
Weighted average interest rate
Debt Instrument, Convertible, Conversion Price
Conversion price
Debt Issuance Cost
Debt issuance costs
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Debt Instrument, Interest Rate, Stated Percentage
Interest rate
Debt Issuance Costs Incurred During Noncash Or Partial Noncash Transaction
Accrued financing costs
Debt, Policy [Policy Text Block]
Debt Issuance Costs
Debt Instrument, Maturity Date
Maturity
Debt Instrument, Interest Rate, Basis for Effective Rate
Debt Instrument Interest Rate
Deferred Tax Liabilities, Prepaid Expenses
Prepaid expenses
Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain]
Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain]
Postretirement Benefits, Type of Deferred Compensation [Axis]
Postretirement Benefits, Type of Deferred Compensation [Axis]
Deferred Finance Costs, Noncurrent, Net
Deferred financing costs, net of accumulated amortization
Deferred Federal Income Tax Expense (Benefit)
Federal
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred taxes:
Deferred Income Tax Expense Benefit
Deferred taxes
Deferred State and Local Income Tax Expense (Benefit)
State
Deferred Tax Assets, Net
Net deferred tax liabilities
Net deferred tax liability
Deferred Tax Assets, Derivative Instruments
Unrealized losses
Deferred Tax Assets, Deferred Income
Deferred revenue
Deferred Tax Assets, Gross
Total gross deferred tax assets
Deferred Tax Assets, Tax Deferred Expense, Other
Allowance for doubtful accounts
Deferred Tax Assets, Other
Other
Deferred Tax Assets Net Current
Deferred income taxes
Less: current deferred tax asset
Deferred Tax Assets, Net of Valuation Allowance
Net deferred tax assets
Deferred Tax Assets, Net [Abstract]
Deferred tax assets:
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
Accrued compensation
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Accrued expenses
Deferred Tax Assets, Operating Loss Carryforwards
Net operating loss carryforwards
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost
Acquisition
Deferred Tax Assets, Valuation Allowance
Valuation allowance
Less: valuation allowance
Deferred Tax Liabilities Noncurrent
Deferred tax liability, noncurrent
Noncurrent deferred tax liabilities
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates
Investment basis difference
Deferred Tax Liabilities, Property, Plant and Equipment
Property and equipment
Deferred Tax Liabilities, Intangible Assets
Intangible assets
Deferred Tax Liabilities, Net
Total deferred tax liabilities
Deferred Tax Liabilities, Gross [Abstract]
Deferred tax liabilities:
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract]
Estimated amounts that will be amortized from accumulated other comprehensive loss over the next year:
Defined Benefit Plan, Expected Future Benefit Payments, Year Five
2019
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Actuarial Gain (Loss), before Tax
Total recognized in other comprehensive loss (income)
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year
Expected employer contributions in 2015 - defined benefit plan
Defined Benefit Pension Plan Liabilities, Current
Current liabilities
Defined Benefit Plan, Benefit Obligation
Benefit obligation - end of year
Benefit obligation - beginning of year
Benefit obligation
Defined Benefit Plan, Amounts Recognized in Balance Sheet
Net amount recognized in balance sheet
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax
Accumulated other comprehensive loss
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Amortization of prior service credit
Amortization of prior service credit
Defined Benefit Plan, Expected Future Benefit Payments, Year Three
2017
Defined Benefit Plan, Expected Future Benefit Payments, Year Two
2016
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax
Net loss (gain) arising during the year
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax
Accumulated loss
Defined Benefit Plan, Actuarial Gain (Loss)
Actuarial losses (gains)
Actuarial losses (gains)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Discount rate
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Other changes recognized in other comprehensive loss (income):
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets
Expected long-term rate of return on plan assets during fiscal year
Expected return on defined benefit plan assets, percentage
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter
Thereafter
Defined Benefit Plan, Expected Future Benefit Payments, Year Four
2018
Defined Benefit Plan, Amortization of Gains (Losses)
Amortization of loss
Recognized actuarial loss
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Amounts recognized in balance sheet consisting of:
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Discount rate
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax [Abstract]
Amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive loss:
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)
Amortization of prior service cost
Defined Benefit Plan, Future Amortization of Gain (Loss)
Amortization of net loss
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation
Benefit obligation - IMTT Acquisition
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Return on Plan Assets
Actual return on plan assets
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Percentage of employer's contribution under the defined contribution plan
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months
2015
Defined Benefit Plan, Benefits Paid
Benefits paid
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Rate of compensation increase
Defined Benefit Plan, Target Plan Asset Allocations
Defined benefit plan, plan asset investment percentage
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets
Fair value of plan assets - IMTT Acquisition
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Change in plan assets:
Defined Benefit Plan, Net Periodic Benefit Cost
Net periodic benefit cost
Net periodic benefit cost
Defined Benefit Plan, Service Cost
Service cost
Defined Benefit Plan, Funded Status of Plan [Abstract]
Funded status
Defined Benefit Plan, Contributions by Plan Participants
Participant contributions
Defined Benefit Plan, Funded Status of Plan
Funded status at end of year
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Change in benefit obligation:
Defined Benefit Plan, Interest Cost
Interest cost
Defined Benefit Plan, Fair Value of Plan Assets
Fair value of plan assets - end of year
Fair value of plan assets - beginning of year
Fair value of plan assets
Defined Benefit Plan, Contributions by Employer
Employer contribution - defined benefit plan
Employer/participant contributions
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract]
Assumed healthcare cost trend rates:
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year
Initial health care cost trend rate
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Components of net periodic benefit cost:
Defined Benefit Plan, Expected Return on Plan Assets
Expected return on plan assets
Defined Contribution Plan, Cost Recognized
Deferred compensation expense
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Weighted average assumptions to determine benefit obligations:
Defined Benefit Plan, Asset Categories [Axis]
Defined Benefit Plan, Asset Categories [Axis]
Defined Benefit Pension Plan, Liabilities, Noncurrent
Noncurrent liabilities
Defined Benefit Plan, Actual Plan Asset Allocations
DB Plan Weighted Average Asset Allocations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Weighted average assumptions to determine net cost:
Defined Benefit Postretirement Life Insurance [Member]
PMLI Benefits [Member]
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Ultimate rate
Defined Benefit Plan, Assets for Plan Benefits, Noncurrent
Noncurrent assets
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate
Year ultimate rate is reached
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax
Prior service credit
Depreciation Depletion And Amortization
Depreciation and amortization
Depreciation
Depreciation
Derivative Liabilities Noncurrent
Fair value of derivative instruments - Noncurrent
Fair value of derivative instruments - non-current liabilities
Derivative Assets Noncurrent
Fair value of derivative instruments - non-current assets
Fair value of derivative instruments
Derivative [Line Items]
Derivative [Line Items]
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
Losses on derivative instruments
Derivative, Remaining Maturity
Interest rate swap term
Derivative Instrument Risk [Axis]
Derivative Instrument Risk [Axis]
Derivative [Table]
Derivative [Table]
Derivative, Maturity Date
Derivatives, expiration date
Derivatives, expiration date
Derivative, Inception Date
Interest rate cap effective date
Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value
Total interest rate derivative contracts - assets
Derivative Instruments and Hedging Activities [Abstract]
Derivative Assets Current
Fair value of derivative instruments - current assets
Derivative Liabilities Current
Fair value of derivative instruments - Current
Fair value of derivative instruments - current liabilities
Derivative Instruments And Hedging Activities Disclosure [Text Block]
Derivative Instruments and Hedging Activities
Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value
Total derivative contracts - liabilities
Derivative, Fixed Interest Rate
Fixed interest rate
Derivative, Cap Interest Rate
Interest rate cap
Derivative, Gain (Loss) on Derivative, Net
Derivatives Not Designated as Hedging Instruments -Amount of Gain/(Loss) Recognized in Interest Expense
Derivative Amount Of Hedged Item
Debt economically hedged with interest rate contracts
Term loans hedged amount
Derivative, Number of Instruments Held
Number of interest rate swap contracts
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Gain Loss By Hedging Relationship By Income Statement Location By Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Contract Type [Domain]
Derivative Contract Type [Domain]
Derivatives, Policy [Policy Text Block]
Derivative Instruments
Derivatives Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Developed Technology Rights [Member]
Technology [Member]
Director [Member]
External Independent Directors [Member]
Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation
Decrease reflected in net income from discontinued operations
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
Gain from acquisition/divestiture of businesses
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment
Sale of property and equipment
Dividend Payable Date To Be Paid Day Month And Year
Cash dividend declared, date to be paid
Payable Date
Dividends Payable Amount Per Share
Cash dividend declared per share
$ per Share
Dividends Payable [Table]
Dividends Payable Nature
Period Covered
Dividends [Axis]
Dividends, Common Stock, Cash
Dividends to shareholders
Dividends Payable Date Of Record Day Month And Year
Cash dividend declared, date of record
Record Date
Dividends Payable [Line Items]
Dividends Payable Date Declared Day Month And Year
Cash dividend declared, date declared
Declared
Dividends [Domain]
Due to Related Parties
Commitment fees payable
Earnings Per Share, Basic and Diluted [Abstract]
Per share information attributable to MIC shareholders:
Income per share:
Earnings Per Share Reconciliation [Abstract]
Numerator:
Earnings Per Share [Text Block]
Income per Share
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Denominator:
Earnings Per Share Basic
Basic income per share attributable to MIC LLC
Net income (loss) per share - basic
Earnings Per Share, Policy [Policy Text Block]
Income per Share
Earnings Per Share Diluted
Diluted income per share attributable to MIC LLC
Net income (loss) per share - diluted
Income per Share [Abstract]
Effect of Exchange Rate on Cash and Cash Equivalents
Effect of exchange rate changes on cash and cash equivalents
Effective Income Tax Rate Reconciliation, Percent
Tax rate used to calculate net income attributable to MIC LLC
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Federal income tax rate
Employee-related Liabilities, Current
Payroll and related liabilities
Energy Related Inventory
Inventory Net, fuel
Environmental Exit Costs, Reasonably Possible Additional Losses, Low Estimate
Estimated minimum cost of remediation
Environmental Exit Costs, Reasonably Possible Additional Losses, High Estimate
Estimated maximum cost of remediation
Members' Equity [Abstract]
Equity Method Investments
Equity Method Investment in unconsolidated business
Investment in IMTT
Investment in unconsolidated business
Equity Method Investment Ownership Percentage
Percentage of ownership interest accounted under equity method of accounting
Equity method ownership percentage
Percentage of interest
Percentage of ownership in IMTT
Equity Issuance Dates
Issue Date
Equity Component [Domain]
Equity Component [Domain]
Proceeds from Equity Method Investment, Dividends or Distributions
Equity distributions from investee
Equity distributions from investee
Equity Securities [Member]
Equity instruments [Member]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy [Domain]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value of Financial Instruments, Policy [Policy Text Block]
Financial Instruments
Fair Value, Inputs, Level 2 [Member]
Significant Observable Inputs (Level 2) [Member]
Fair Value, Inputs, Level 1 [Member]
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Inputs, Level 3 [Member]
Significant Unobservable Inputs (Level 3) [Member]
Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Federal Income Tax Expense (Benefit), Continuing Operations
Decrease in federal tax expense or benefit from continuing operations
Financial Services Revenue [Abstract]
Financing and Lease Income
Financial Instrument [Axis]
Financial Instrument [Axis]
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2018
Finite-Lived Intangible Asset, Useful Life
Finite Lived Intangible assets, useful life
Finite Lived Intangible Assets Gross
Intangible assets, gross
Finite Lived Customer Relationships Gross
Customer relationships
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Thereafter
Finite Lived Noncompete Agreements Gross
Non-compete agreements
Finite Lived Contractual Rights Gross
Contractual arrangements
Finite Lived Intangible Assets Accumulated Amortization
Less: accumulated amortization
Finite-Lived Intangible Assets, Net
Total
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months
2015
Finite-Lived Intangible Assets, Amortization Expense, Year Five
2019
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2016
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2017
Fixed Income Funds [Member]
Fixed income securities - International [Member]
Fixed Income Securities [Member]
Fixed income securities - U.S. [Member]
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Foreign Currency Translation
Furniture and Fixtures [Member]
Furniture and Fixtures [Member]
Furniture And Fixtures Gross
Furniture and fixtures
Gain Loss On Disposition Of Assets
Loss (gain) on disposal of assets
Gain (Loss) on Disposition of Business
Gain on disposal of business
Gain (Loss) on Contract Termination
Loss from customer contract termination
Loss from customer contract termination
Gains (Losses) on Extinguishment of Debt
Loss on extinguishment of debt
Goodwill, Other Changes
Less: other
Goodwill
Goodwill
Balance at December 31, 2014
Balance at December 31, 2014
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Impairment of Goodwill
Goodwill and Intangible Assets, Policy [Policy Text Block]
Goodwill and Intangible Assets
Goodwill And Intangible Assets Disclosure [Text Block]
Intangible Assets
Goodwill, Written off Related to Sale of Business Unit
Less: goodwill associated with sold business
Goodwill Impaired Accumulated Impairment Loss
Less: accumulated impairment charges
Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block]
Impairment of Indefinite-lived Intangibles, Excluding Goodwill
Intangible Assets [Abstract]
Goodwill, Acquired During Period
Add: goodwill related to acquisitions
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Impairment of Long-lived Assets, Excluding Goodwill
Income Loss From Equity Method Investments
Equity in earnings and amortization charges of investees
Equity in earnings of investee
Equity in earnings and amortization charges of investee
Income Tax Authority [Domain]
Income Tax Authority [Domain]
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Taxes [Abstract]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Income Tax Expense Benefit
Provision for income taxes
Total tax (benefit) provision
Total tax (benefit) provision
Benefit (provision) for income taxes
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Federal dividends received deduction on IMTT and district energy business dividends, pre-acquisition or disposal
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount
Deferred income tax expense due to the effects of the rate increase
Change in District Energy tax status
Income Tax Disclosure [Text Block]
Income Taxes
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount
Permanent and other differences between book and federal taxable income
Income Taxes Paid
Taxes paid
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount
Impairment of non-deductible intangibles
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Tax provision at U.S. statutory rate
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State income taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount
Income attributable to noncontrolling interest in joint ventures
Income Tax, Policy [Policy Text Block]
Income Taxes
Increase Decrease In Accounts Receivable
Accounts receivable
Increase Decrease In Accrued Income Taxes Payable
Income taxes payable
Increase Decrease In Accounts Payable And Accrued Liabilities
Accounts payable and accrued expenses
Increase Decrease In Operating Capital [Abstract]
Changes in other assets and liabilities, net of acquisitions:
Increase Decrease In Inventories
Inventories
Increase Decrease In Other Operating Capital Net
Other, net
Increase Decrease In Prepaid Deferred Expense And Other Assets
Prepaid expenses and other current assets
Increase (Decrease) in Pension Plan Obligations
Pension contribution
Increase (Decrease) in Restricted Cash for Operating Activities
Restricted cash
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Dilutive effect of convertible senior notes
Incremental Common Shares Attributable To Share Based Payment Arrangements
Dilutive effect of restricted stock unit grants
Intangible Assets Net Excluding Goodwill
Intangible assets, net
Intangible assets, net
Interest Payable, Current
Interest
Interest Expense
Interest expense
Interest Income Expense Net
Interest expense, net
Interest Paid Net
Interest paid
Interest Rate Swap [Member]
Interest Rate Swaps [Member]
Interest Rate Cap [Member]
Interest Rate Cap [Member]
Interest on Convertible Debt, Net of Tax
Interest expense attributable to convertible senior notes, net of taxes
Interest Rate Contract [Member]
Interest Rate Contracts [Member]
Interest Expense [Member]
Interest Expense [Member]
Inventory Net
Inventories
Inventory, Finished Goods, Gross
Inventory Net, held for sale
Inventory, Policy [Policy Text Block]
Inventory
Inventory, Raw Materials and Supplies, Net of Reserves
Inventory Net, materials and supplies
Investment Income Interest
Interest income
Investment, Policy [Policy Text Block]
Investments
Investment Income, Dividend
Dividend income
Investment Owned, Percent of Net Assets
Investment owned, percentage
Investments in Power and Distribution Projects
Capital Investment Value
London Interbank Offered Rate (LIBOR) [Member]
LIBOR [Member]
Lessor Leasing Arrangements, Operating Leases, Term of Contract
Term of contracts for the use of storage capacity at the various terminals
Letters of Credit Outstanding, Amount
Letters of credit outstanding
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Weighted Average Interest Rate
Weighted average interest rate
Land
Land
Lease And Rental Expense
Lease expense on copiers
Leasehold Improvements Gross
Leasehold and land improvements
Leaseholds and Leasehold Improvements [Member]
Leasehold and land improvements [Member]
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]
Leases
Capital Leases [Abstract]
Legal Matters And Contingencies [Text Block]
Legal Proceedings and Contingencies
Letter of Credit [Member]
Letter of Credit [Member]
Liabilities Current
Total current liabilities
Liabilities And Stockholders Equity
Total liabilities and equity
Liabilities Current [Abstract]
Current liabilities:
Liabilities
Total liabilities
Liabilities And Stockholders Equity [Abstract]
LIABILITIES AND MEMBERS' EQUITY
Line of Credit Facility, Commitment Fee Percentage
Interest rate and fees, commitment fee percentage
Long-term Line of Credit
Line of credit, amount outstanding
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Maximum Borrowing Capacity
Borrowing capacity
Lender Name [Axis]
Lender Name [Axis]
Line Of Credit [Member]
Stand-alone debt facility [Member]
Line of Credit Facility, Commitment Fee Amount
Commitment fee
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity
Current borrowing capacity
Facilities, current borrowing capacity
Line of Credit Facility [Table]
Line of Credit Facility, Remaining Borrowing Capacity
Undrawn portion of line of credit
Long-term Construction Loan, Current
Construction loan, current
Long Term Debt
Long-term debt
Current and long-term debt
Current and long-term Debt
Facilities, long-term debt
Long-term Debt [Member]
Stand-alone debt facility [Member]
Long Term Debt [Text Block]
Long-Term Debt
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
2015
Long-term Debt, Maturities, Repayments of Principal in Year Three
2017
Long-term Debt, Maturities, Repayments of Principal in Year Two
2016
Long Term Debt Current
Current portion of long-term debt
Less: current portion
Long Term Debt Noncurrent
Long-term debt, net of current portion
Long-term portion
Long-term portion
Long-term Debt, Maturities, Repayments of Principal in Year Four
2018
Long-term Debt, Maturities, Repayments of Principal after Year Five
Thereafter
Long-term Debt, Maturities, Repayments of Principal in Year Five
2019
Mergers Acquisitions And Dispositions Disclosures [Text Block]
Acquisitions and Disposition
Machinery And Equipment Gross
Machinery and equipment
Machinery and Equipment [Member]
Machinery and equipment [Member]
Management [Member]
Manager [Member]
Maximum [Member]
Maximum [Member]
Minimum [Member]
Minimum [Member]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests
Net adjustment to noncontrolling interest from acquisitons/disposition
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Distributions payable to noncontrolling interests
Distributions to noncontrolling interest members
Noncontrolling Interest, Ownership Percentage by Parent
Condition for consolidation, minimum ownership percentage
Ownership percentage
Minority Interest
Noncontrolling interests
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Percentage of co-investor's interest reflected in noncontrolling interest
Nature Of Operations
Organization and Description of Business
Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract]
Financing activities
Net Income Loss
Net income (loss) attributable to MIC LLC
Net income attributable to MIC LLC
Net income attributable to MIC LLC
Net income (loss)
Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract]
Operating activities
Net Cash Provided By Used In Operating Activities Continuing Operations
Net cash provided by operating activities
Net Income (Loss) Available to Common Stockholders, Diluted
Diluted net income attributable to MIC LLC
Net Cash Provided By Used In Investing Activities
Net cash (used in) provided by investing activities
Net Cash Provided By Used In Financing Activities
Net cash provided by (used in) financing activities
Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract]
Investing activities
Net Income Loss Attributable To Noncontrolling Interest
Less: net (loss) income attributable to noncontrolling interests
New Accounting Pronouncements, Policy [Policy Text Block]
Recently Issued Accounting Standards Adopted
Noncompete Agreements [Member]
Non-compete agreements [Member]
Nonoperating Income (Expense) [Member]
Other (expense) income, net [Member]
Nonoperating Income Expense [Abstract]
Other income (expense)
Number Of Reportable Segments
Number of reportable segments
Noncontrolling Interest [Member]
Noncontrolling Interests [Member]
Noncontrolling Interest, Increase from Business Combination
Fair valuation adjustment to noncontrolling interest on acquisition
Noncontrolling Interest, Decrease from Deconsolidation
Sale of District Energy business
Nondesignated [Member]
Not Designated as Hedging Instrument [Member]
Over Allotment Option [Member]
Officer [Member]
Manager [Member]
Operating Leases, Future Minimum Payments, Due in Five Years
2019
Operating Leases, Future Minimum Payments, Due in Four Years
2018
Operating Loss Carryforwards Valuation Allowance
Net operating loss carry-forwards valuation allowance
Operating Leases, Future Minimum Payments, Due in Three Years
2017
Operating Leases, Rent Expense, Net
Operating leases rent expense
Operating Leases, Future Minimum Payments, Due in Two Years
2016
Operating Income Loss
Operating income (loss)
Operating income
Operating Loss Carryforwards, Expiration Date
Net operating loss carry-forwards, expiration date
Operating Leases, Future Minimum Payments, Due Thereafter
Thereafter
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2015
Operating Leases, Future Minimum Payments Due
Total
Operating Loss Carryforwards
Net operating loss carry-forwards
Organization and Description of Business [Abstract]
Other Comprehensive Income Loss Net Of Tax
Other comprehensive (loss) income
Other comprehensive (loss) income
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax
Reclassification of realized losses of derivatives into earnings, taxes
Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax
Translation adjustment, taxes
Other Current Liabilities [Member]
Other Current Liabilities [Member]
Other Noncurrent Liabilities [Member]
Other Long-term Liabilities [Member]
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
Translation adjustment
Translation adjustment
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax
Change in post-retirement benefit plans, taxes
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax
Net loss in accumulated other comprehensive income reclassifications for cash flow hedges
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax
Reclassification of realized losses of derivatives
Reclassification of realized losses of derivatives into earnings
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Change in post-retirement benefit plans
Other Assets Noncurrent
Other
Other Noncash Income Expense
Other non-cash expense (income)
Other non-cash expense
Other non-cash expenses, net
Other Pension Plan [Member]
Other Plan Benefits [Member]
Other Assets Current
Other
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract]
Other comprehensive (loss) income, net of taxes:
Other Liabilities, Fair Value Disclosure
Fair value of interest rate swaps
Other Finite Lived Intangible Assets Gross
Leasehold rights
Other Expenses
Other (expense) income, net
Other income (expense), net
Other Nonoperating Income Expense
Other (expense) income, net
Other Liabilities Noncurrent
Other
Other Liabilities Current
Other
Other Sales Revenue Net
Other services
Other Sundry Liabilities, Current
Purchase of property and equipment
Other Postretirement Benefit Plan, Defined Benefit [Member]
Post-Retirement Benefit Plans, net of taxes [Member]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent
Translation adjustment
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Portion Attributable to Parent
Change in post-retirement benefit plans, amount written off
Other Long-term Debt [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent
Reclassification of realized losses of derivatives into earnings from unconsolidated business, taxes
Other Accrued Liabilities, Current
Other
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent
Loss in accumulated other comprehensive income reclassifications for cash flow hedges from unconsolidated business
Products and Services [Domain]
Products and Services [Domain]
Parent [Member]
Company [Member]
Parent [Member]
Payments For Proceeds From Other Investing Activities
Other, net
Payments Of Dividends Minority Interest
Distributions paid to noncontrolling interests
Payments To Acquire Businesses Net Of Cash Acquired
Acquisitions of businesses and investments, net of cash acquired
Acquisitions of businesses and investments, net of cash acquired
Payments to Acquire Equipment on Lease
Investment in capital leased assets
Payments to Acquire Businesses, Gross
Business acquisition, cash paid
Payments To Acquire Property Plant And Equipment
Capital expenditures
Capital expenditures paid
Purchases of property and equipment
Payments of Stock Issuance Costs
Offering and equity raise costs paid
Payments of Debt Issuance Costs
Debt financing costs paid
Payments Of Dividends
Dividends paid to shareholders
Payments for Previous Acquisition
Payments for previous acquisition
Pension and Other Postretirement Benefits Disclosure [Text Block]
Employee Benefit Plans
Pension Contributions
Pension contribution
Employee Benefit Plans [Abstract]
Pension Plan, Defined Benefit [Member]
DB Plans Benefits [Member]
Plan Name [Domain]
Plan Asset Categories [Domain]
Plan Asset Categories [Domain]
Plan Name [Axis]
Prepaid Expense Current
Prepaid expenses
Prepaid monthly payment
Reclassification, Policy [Policy Text Block]
Reclassifications
Pro Forma [Member]
Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital
Return of investment in unconsolidated business
Proceeds From Repayments Of Other Debt
Payment of notes and capital lease obligations
Proceeds from Divestiture of Businesses
Proceeds from sale of business
Proceeds from (Repayments of) Restricted Cash, Financing Activities
Change in restricted cash
Proceeds from Construction Loans Payable
Proceeds from construction loans
Proceeds from (Repayments of) Secured Debt
Proceeds from term loan facility
Proceeds from Convertible Debt
Proceeds from convertible bonds
Proceeds from the issuance of convertible senior notes
Proceeds from (Repayments of) Lines of Credit
Net proceeds on line of credit facilities
Proceeds from Issuance or Sale of Equity
Proceeds from equity offering
Proceeds From Minority Shareholders
Contributions from noncontrolling interest members
Capital contribution by noncontrolling co-investor
Contributions received from noncontrolling interests
Proceeds From Issuance Of Long Term Debt
Proceeds from long-term debt
Proceeds from Divestiture of Businesses, Net of Cash Divested
Proceeds from sale of business, net of cash divested
Proceeds from Issuance of Common Stock
Proceeds from the issuance of shares
Proceeds from Stock Plans
Proceeds from the issuance of shares pursuant to MIC Direct
Products and Services [Axis]
Products and Services [Axis]
Profit Loss
Net income
Net income
Net income
Property Plant And Equipment Other
Property held for future use
Property, Plant and Equipment, Policy [Policy Text Block]
Property, Equipment, Land and Leasehold Improvements
Property, Plant and Equipment, Useful Life
Property Plant and Equipment, Useful life
Property Plant And Equipment Gross
Property, equipment, land and leasehold improvements, gross
Property Plant And Equipment Net
Property, Equipment, Land and Leasehold Improvements
Property, equipment, land and leasehold improvements, net
Property, equipment, land and leasehold improvements, net
Property, Equipment, Land and Leasehold Improvements [Abstract]
Property Plant And Equipment [Text Block]
Schedule of Property and Equipment
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property Plant And Equipment Disclosure [Text Block]
Property, Equipment, Land and Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Quarterly Financial Information [Text Block]
Quarterly Data (Unaudited)
Quarterly Data (Unaudited) [Abstract]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Receivables, Policy [Policy Text Block]
Allowance for Doubtful Accounts
Reconciliation Of Operating Profit Loss From Segments To Consolidated [Table]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table]
Reconciliation Of Assets From Segment To Consolidated [Text Block]
Schedule of Reconciliation of Assets of Reportable Segments
Reconciliation Of Operating Profit Loss From Segments To Consolidated [Text Block]
Schedule of EBITDA for Reportable Segments
Related Party Transactions Disclosure [Text Block]
Related Party Transactions
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Related Party Transactions By Related Party [Axis]
Related Party [Axis]
Related Party Transaction Expenses From Transactions With Related Party
Reimbursement of out-of-pocket expenses
Related Party [Domain]
Related Party [Domain]
Related Party Transactions [Abstract]
Repayments of Other Debt
Payment of make-whole payment
Repayments Of Long Term Debt
Payment of long-term debt
Payment of long-term debt
Restricted Cash and Cash Equivalents
Restricted cash
Restricted Cash and Cash Equivalents, Current
Restricted cash
Restricted cash, current
Restricted Cash and Cash Equivalents, Noncurrent
Restricted cash
Retained Earnings Accumulated Deficit
Retained earnings (accumulated deficit)
Retained Earnings [Member]
Accumulated Deficit [Member]
Revenue Recognition, Policy [Policy Text Block]
Revenue Recognition
Revenues
Total Revenue
Operating Revenue
Revenue
Total revenue
Revenue from related party
Revenues [Abstract]
Revenue
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Schedule of Estimated Future Amortization Expense
Sales Revenue Services Net [Abstract]
Service Revenue
Sales Revenue Goods Net
Product Sales
Product revenue
Sales Revenue Services Net
Service revenue
Service revenue
Sales and Excise Tax Payable, Current
Sales tax
Sales Revenue Goods Net [Abstract]
Revenue from Product Sales
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of Assets Acquired and Liabilities Assumed
Schedule of Net Funded Status [Table Text Block]
Funded Status of Hawaii Gas's Balance Sheet
Schedule of Allocation of Plan Assets [Table Text Block]
Asset Allocations of Hawaii Gas's Pension Benefits
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Components of Income Taxes
Schedule Of Debt Table [Text Block]
Schedule of Long-Term Debt
Schedule of Maturities of Long-term Debt [Table Text Block]
Schedule of Future Maturities of Long-Term Debt
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
Schedule of Future Minimum Lease Payments Under Capital Leases
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Reconciliation of Income Taxes
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Schedule of Accrued Expenses
Schedule Of Other Derivatives Not Designated As Hedging Instruments Statements Of Financial Performance And Financial Position Location Table [Text Block]
Schedule of Location of Hedging Activities
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Schedule of Future Minimum Rental Commitments
Schedule Of Related Party Transactions Table [Text Block]
Schedule of Base Management Fees and Performance Fees
Schedule of Quarterly Financial Information [Table Text Block]
Schedule of Quarterly Data
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Loss
Schedule of Share-based Compensation, Nonemployee Director Stock Award Plan, Activity [Table Text Block]
Schedule of Stock Issued to Board of Directors
Schedule Of Finite Lived Intangible Assets Table [Text Block]
Schedule of Intangible Assets
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Components of Net Periodic Benefit Cost and Other Changes in Other Comprehensive Income for Plans
Schedule Of Weighted Average Number Of Shares Table [Text Block]
Schedule of Reconciliation of Income per Share
Schedule Of Business Acquisitions By Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Expected Benefit Payments [Table Text Block]
Estimated Future Benefit Payments
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of Material Terms
Schedule of Dividends Payable [Table Text Block]
Schedule of Dividends
Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block]
Schedule of Revenue From External Customers
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule Of Goodwill [Text Block]
Schedule of Goodwill
Schedule Of Segment Reporting Information By Segment [Text Block]
Schedule of Segment Information
Schedule Of Related Party Transactions By Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule Of Property Plant And Equipment [Table]
Schedule of Property, Plant and Equipment [Table]
Schedule Of Segment Reporting Information By Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Schedule of Fair Value of Derivative Instruments
Schedule Of Stock By Class [Table]
Schedule of Stock by Class [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Goods and Nonemployee Services Transaction [Table]
Schedule of Share-based Goods and Nonemployee Services Transaction [Table]
Secured Debt [Member]
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Reportable Segments [Abstract]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Segment [Domain]
Segment [Domain]
Segment Reporting Disclosure [Text Block]
Reportable Segments
Segment Geographical [Domain]
Segment, Geographical [Domain]
Selling General And Administrative Expense
Selling, general and administrative
Senior Notes [Member]
Senior secured notes [Member]
Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]
Award Type [Domain]
Share-based Goods and Nonemployee Services Transaction [Line Items]
Share-based Goods and Nonemployee Services Transaction [Line Items]
Shares Issued, Price Per Share
Equity offering, price per share
Significant Acquisitions and Disposals, Gain (Loss) on Sale or Disposal, Net of Tax
Gain from acquisition/divestiture of businesses
Significant Accounting Policies [Text Block]
Summary of Significant Accounting Policies
State and Local Income Tax Expense (Benefit), Continuing Operations
Increase in state income tax expense or benefit from continuing operations
Scenario [Axis]
Scenario [Axis]
Statement [Table]
Statement [Table]
Statement [Line Items]
Statement [Line Items]
CONSOLIDATED STATEMENTS OF MEMBERS' EQUITY [Abstract]
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Statement Geographical [Axis]
Geographical [Axis]
CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract]
Equity Components [Axis]
Equity Components [Axis]
CONSOLIDATED BALANCE SHEETS [Abstract]
Statement Business Segments [Axis]
Business Segments [Axis]
Stock Issued During Period, Shares, Period Increase (Decrease)
Equity offering, shares
Stock Issued During Period, Shares, Acquisitions
Issuance of shares for acquisition of businesses, shares
Issuance of shares pursuant to IMTT acquisition (in shares)
Stock Issued During Period, Value, Acquisitions
Issuance of shares for acquisition of business
Issuance of shares pursuant to IMTT acquisition
Stock Issued
Issuance of shares for acquisition of business
Stock Issued During Period, Shares, New Issues
Issuance of shares (in shares)
Stock Issued During Period, Value, New Issues
Issuance of shares
Issuance of Shares
Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]
Members' equity:
Stockholders Equity
Total members' equity
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
Balance
Balance
Total equity
Stockholders Equity Note Disclosure [Text Block]
Members' Equity
Subsequent Events [Text Block]
Subsequent Events
Subsequent Events [Abstract]
Subsequent Event [Table]
Subsequent Event [Line Items]
Subsequent Event [Member]
Subsequent Event Type [Domain]
Subsequent Event Type [Axis]
Subsidiary Of Limited Liability Company Or Limited Partnership Ownership Interest
Percentage of controlling interest in district energy business sold
Percentage of interest
Supplemental Cash Flow Elements [Abstract]
Supplemental disclosures of cash flow information
Trade Names [Member]
Trade names [Member]
Financial Instruments [Domain]
Unrealized Gain Loss On Derivatives
Adjustments to derivative instruments
Use of Estimates, Policy [Policy Text Block]
Use of Estimates
Valuation Allowance, Deferred Tax Asset, Change in Amount
Change in valuation allowance
Change in valuation allowance
Variable Rate [Domain]
Variable Rate [Axis]
Weighted Average Number Of Shares Outstanding Basic
Weighted average number of shares outstanding: basic
Weighted Average Number Of Diluted Shares Outstanding
Weighted average number of shares outstanding: diluted
Weighted average number of shares outstanding: diluted
Write off of Deferred Debt Issuance Cost
Loss on extinguishment of debt
Loss on extinguishment of debt