Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] 2015 Swaps Interest Rate Swap Two [Member] Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period. 2014 Swaps Interest Rate Swap One [Member] Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period. Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset Fair Value Cash Flow Hedge Derivative Instrument Assets at Fair Value Liability Fair Value Cash Flow Hedge Derivative Instrument Liabilities at Fair Value Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Other Real Estate Partnerships Other Real Estate Partnership [Member] Other real estate partnership. Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Assets: Assets [Abstract] Net Investment in Real Estate Real Estate Investment Property, Net Other Assets, Net Other Assets Total Assets Assets Liabilities and Partners' Capital: Liabilities and Equity [Abstract] Mortgage Loans Payable, Net Secured Debt Other Liabilities, Net Other Liabilities Partners’ Capital Partners' Capital Total Liabilities and Equity/Partners' Capital Liabilities and Equity Commitments and Contingencies Disclosure [Abstract] Other Commitments [Table] Other Commitments [Table] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] 2016 Fire 2016 Fire [Member] 2016 Fire 2017 Fire 2017 Fire [Member] 2017 Fire Other Commitments [Line Items] Other Commitments [Line Items] Number of industrial properties under construction Number Of Industrial Properties Under Construction Number of industrial properties under construction. Gross leasable area (GLA) of industrial properties under construction Gross Leasable Area Under Construction Gross leasable area (GLA) of industrial properties under construction. Estimated total investment Estimated Total Investment Estimated total investment of industrial properties under construction. Estimated total investment remaining to be funded Estimated Total Investment Remaining To Be Funded Estimated total investment remaining to be funded of industrial properties under construction. Gross leasable area (GLA) of industrial properties destroyed by fires Area of Real Estate Property Insurance deductible Insurance Deductible Amount of money paid in an insurance claim before the insurance coverage begins to pay. Write off of unamortized net book value of building improvements Write off of unamortized net book value Write off of unamortized net book value of building improvements Debt Disclosure [Abstract] Remainder of 2017 Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 2018 Long-term Debt, Maturities, Repayments of Principal in Year Two 2019 Long-term Debt, Maturities, Repayments of Principal in Year Three 2020 Long-term Debt, Maturities, Repayments of Principal in Year Four 2021 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total Long-term Debt, Gross Fair Value Measurements on Recurring Basis Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Income Statement [Abstract] Statement [Table] Statement [Table] First Industrial, L.P. First Industrial LP [Member] First Industrial LP [Member] Statement [Line Items] Statement [Line Items] Revenues: Real Estate Revenue, Net [Abstract] Rental Income Operating Leases, Income Statement, Lease Revenue Tenant Recoveries and Other Income Tenant Reimbursements Total Revenues Real Estate Revenue, Net Expenses: Operating Costs and Expenses [Abstract] Property Expenses Direct Costs of Leased and Rented Property or Equipment General and Administrative General and Administrative Expense Acquisition Costs Business Combination, Acquisition Related Costs Depreciation and Other Amortization Depreciation, Depletion and Amortization, Nonproduction Total Expenses Operating Expenses Other Income (Expense): Nonoperating Income (Expense) [Abstract] Gain on Sale of Real Estate Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Interest Expense Interest Expense Amortization of Deferred Financing Costs Amortization of Debt Issuance Costs Loss from Retirement of Debt Gain (Loss) on Extinguishment of Debt Total Other Income (Expense) Nonoperating Income (Expense) Income from Operations Before Income Tax Provision Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income Tax Provision Income Tax Expense (Benefit) Net Income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Less: Net Income Attributable to the Noncontrolling Interest Net Income (Loss) Attributable to Noncontrolling Interest Net Income Available to Common Stockholders/Unitholders and Participating Securities Net Income (Loss) Attributable to Parent Basic and Diluted EPS / EPU Earnings Per Share, Basic and Diluted [Abstract] Net Income Available to Common Stockholders/Unitholders Earnings Per Share, Basic and Diluted Dividends/Distributions Per Share/Unit Common Stock, Dividends, Per Share, Declared Weighted Average Shares/Units Outstanding - Basic Weighted Average Number of Shares Outstanding, Basic Weighted Average Shares/Units Outstanding - Diluted Weighted Average Number of Shares Outstanding, Diluted Accumulated Other Comprehensive Loss [Abstract] Accumulated Other Comprehensive Loss [Abstract] Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Summary of Indebtedness Schedule of Debt [Table Text Block] Schedule of Maturities Schedule of Maturities of Long-term Debt [Table Text Block] Summary of Indebtedness at Estimated Fair Value Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Mortgage Loans Payable Mortgages [Member] Senior Unsecured Notes Unsecured Debt [Member] Unsecured Term Loan Long-term Debt [Member] Unsecured Credit Facility Line of Credit [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Carrying Amount Long-term Debt Fair Value Loans Payable, Fair Value Disclosure Fair Value Notes Payable, Fair Value Disclosure Fair Value Long-term Debt, Fair Value Fair Value Lines of Credit, Fair Value Disclosure Fair Value Debt Instrument, Fair Value Disclosure Statement of Comprehensive Income [Abstract] Net Income Mark-to-Market (Loss) Gain on Interest Rate Protection Agreements Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Amortization of Interest Rate Protection Agreements Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Comprehensive Income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income Attributable to Common Stockholders / Unitholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Real Estate [Abstract] Investment in Real Estate Real Estate Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Events Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of industrial properties sold Number Of Industrial Properties Sold Number of industrial properties sold. Proceeds from sale of industrial properties Proceeds from Sale of Buildings Document And Entity Information [Abstract] Document and Entity Information [Abstract] Document Information [Table] Document Information [Table] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Number of industrial properties acquired Number of Businesses Acquired Gross Leasable Area Acquired Gross Leasable Area Acquired Gross leasable area (GLA) of industrial properties acquired. Purchase price of land parcels acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Number of industrial properties held for sale Number of Industrial Properties Held for Sale Number of industrial properties held for sale. Gross leasable area (GLA) of industrial properties held for sale Gross Leasable Area Held for Sale Gross leasable area (GLA) of industrial properties held for sale. Number of land parcels held for sale Number of Land Parcels Held for Sale Number of Land Parcels Held for Sale Gross leasable area (GLA) of industrial properties sold Gross Leasable Area Sold Gross leasable area (GLA) of industrial properties sold. Gain on sale of real estate Gain (Loss) on Sale of Properties Stockholders' Equity Note [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common Stock / Operating Partnership Units Common Stock [Member] Class of Stock [Line Items] Class of Stock [Line Items] Shares of common stock issued Sale of Stock, Number of Shares Issued in Transaction Net proceeds from issuance of common stock Proceeds from Issuance of Common Stock Common Stock, shares authorized Common Stock, Shares Authorized Conversion of Limited Partner Units to Common Stock / General Partner Units, Shares Stock Issued During Period, Shares, Conversion of Units Conversion of Limited Partner Units to Common Stock / General Partner Units, Value Stock Issued During Period, Value, Conversion of Units Common stock dividends and Unit distributions Dividends, Common Stock, Cash Earnings Per Share [Abstract] Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Net Income Allocable to Participating Securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Net Income Available to Common Stockholders / Unitholders Net Income (Loss) Available to Common Stockholders, Basic Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted Average Shares / Units - Basic LTIP Unit Awards (As Defined in Note 9) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted Average Shares / Units - Diluted Derivative [Line Items] Derivative [Line Items] Debt Instrument, Term Debt Instrument, Term Debt Instrument, Face Amount Debt Instrument, Face Amount Debt instrument, LIBOR Rate Debt Instrument, Description of Variable Rate Basis Swaps, Number of Instruments Held Derivative, Number of Instruments Held Swaps, Notional Amount Derivative, Notional Amount Swaps, Average Fixed Interest Rate Derivative, Average Fixed Interest Rate Earnings Per Share / Unit (EPS / EPU) Earnings Per Share [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Equity Method Investee, Name [Axis] Investment, Name [Axis] Equity Method Investee, Name [Domain] Investment, Name [Domain] Organization [Line Items] Organization And Formation Of Company [Line Items] Organization And Formation Of Company [Line Items] Company's ownership interest Noncontrolling Interest, Ownership Percentage by Parent Number of Other Real Estate Partnerships NumberOfLimitedPartnership Number of limited partnerships. Operating Partnership's minimum ownership interest in the Other Real Estate Partnerships Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest General partners' minimum ownership interest in the Other Real Estate Partnerships Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Limited partners' ownership interest in the Operating Partnership Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Receivable balance due from a direct wholly-owned subsidiary Due from Affiliates Number of industrial properties owned Number of Real Estate Properties Number of states in which industrial properties are located Number of States in which Entity Operates Gross leasable area (GLA) of industrial properties owned Subsequent Events Subsequent Events [Text Block] Share-based Compensation [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Management Management [Member] Director Director [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock/Unit Awards Restricted Stock [Member] LTIP Unit Awards Restricted Stock Units (RSUs) [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Restricted stock/Unit awards and LTIP Unit Awards issued Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted Fair value of restricted stock/Unit awards and LTIP Unit Awards issued Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Grant Date Fair Value The fair value at approval date of non-option equity instruments granted during the period. Vesting period of restricted stock/Unit awards issued Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Compensation expense recognized at date of grant Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Vesting percentage of LTIP Unit Awards Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Amortization related to restricted stock/Unit awards and LTIP Unit Awards Allocated Share-based Compensation Expense Unrecognized compensation related to unvested restricted stock/Unit awards and LTIP Unit Awards Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted average period of unrecognized compensation expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification Out of Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Amortization to be reclassified from OCI into income Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred Unvested Restricted Stock / Unit Awards Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Accounting Policies [Abstract] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Investment in Real Estate and Depreciation Property, Plant and Equipment, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Noncontrolling Interest Rollforward Noncontrolling Interest Rollforward [Table Text Block] Noncontrolling interest rollforward. Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Interest Rate Swap Interest Rate Swap [Member] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Interest Rate Protection Agreements Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Interest Expense - Amortization of IRPAs Interest Expense - Settlement Payments Interest Expense, Other Total Stockholders' Equity of the Company and Partners' Capital of the Operating Partnership Stockholders' Equity Note Disclosure [Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Statement of Cash Flows [Abstract] Common Stock Noncontrolling Interest Noncontrolling Interest [Member] Additional Paid-in- Capital Additional Paid-in Capital [Member] Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Limited Partner Units Limited Partner [Member] General Partner Units General Partner [Member] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Amortization of Deferred Financing Costs Other Amortization, including Stock Based Compensation Other Depreciation and Amortization Provision for Bad Debt Provision for Doubtful Accounts Gain on Sale of Real Estate Loss from Retirement of Debt Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net Increase (Decrease) in Operating Assets Increase in Deferred Rent Receivable, Net Straight Line Rent Decrease in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits Increase (Decrease) in Operating Liabilities Payments of Prepayment Penalties and Discounts Associated with Retirement of Debt Payments of Debt Extinguishment Costs Net Cash Provided by Operating Activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Acquisitions of Real Estate Payments to Acquire Real Estate Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs Payments for Leasing Costs, Commissions, and Tenant Improvements Net Proceeds from Sales of Investments in Real Estate Proceeds from Sale of Property Held-for-sale Decrease in Escrows Increase (Decrease) in Restricted Cash Net Cash Used in Investing Activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Financing and Equity Issuance Costs Payment of Financing and Stock Issuance Costs Proceeds from Issuance of Common Stock/Contribution of General Partner Units Repurchase and Retirement of Restricted Stock/Units Payments Related to Tax Withholding for Share-based Compensation Common Stock Dividends and Unit Distributions Paid Payments of Ordinary Dividends, Common Stock Contributions from Noncontrolling Interests Proceeds from Noncontrolling Interests Distributions to Noncontrolling Interests Payments to Noncontrolling Interests Repayments on Mortgage Loans Payable Repayments of Secured Debt Proceeds from Senior Unsecured Notes Proceeds from Issuance of Unsecured Debt Repayments of Senior Unsecured Notes Repayments of Unsecured Debt Proceeds from Unsecured Credit Facility Proceeds from Long-term Lines of Credit Repayments on Unsecured Credit Facility Repayments of Long-term Lines of Credit Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Net Increase (Decrease) in Cash and Cash Equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, Beginning of Year Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents, End of Period SUPPLEMENTAL INFORMATION TO STATEMENTS OF CASH FLOWS: Supplemental Cash Flow Information [Abstract] Interest Expense Capitalized in Connection with Development Activity Interest Paid, Capitalized Supplemental Schedule of Non-Cash Investing and Financing Activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Dividends and Distributions Payable Dividends Payable Exchange of Limited Partnership Units for Common Stock/General Partnership Units: Exchange Of Limited Partnership Units For General Partnership Units [Abstract] Exchange of Limited partnership units for General partnership units. Conversion of Limited Partner Units to Common Stock/General Partner Units Assumption of Indebtedness and Other Liabilities in Connection with the Acquisition of Real Estate Liabilities Assumed Accounts Payable Related to Construction in Progress and Additions to Investment in Real Estate Capital Expenditures Incurred but Not yet Paid Write-off of Fully Depreciated Assets Write Off Of Fully Depreciated Assets The non-cash amount of fully depreciated assets being written off during the period. Summary of Acquisition Purchase Price Allocation Schedule of Business Acquisitions, by Acquisition [Table Text Block] Statement of Stockholders' Equity [Abstract] Distributions in Excess of Accumulated Earnings Accumulated Distributions in Excess of Net Income [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Increase (Decrease) in Stockholders' Equity / Partners' Capital [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Beginning Balance Partners' Capital, Including Portion Attributable to Noncontrolling Interest Issuance of Common Stock / Contribution of General Partner Units, Net of Issuance Costs Stock Issued During Period, Value, New Issues Stock Based Compensation Activity Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Stock Based Compensation Activity Partners' Capital Account, Unit-based Compensation Reallocation - Additional Paid-in-Capital Adjustments to Additional Paid in Capital, Other Common Stock Dividends and Unit Distributions Unit Distributions Partners' Capital Account, Distributions Contributions from Noncontrolling Interest Partners' Capital Account, Contributions Distributions to Noncontrolling Interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Reallocation - Other Comprehensive Income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other Comprehensive Income Other Comprehensive Income (Loss), Net of Tax Ending Balance Ending Balance Computation of Basic and Diluted Earnings Per Share / Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest Beginning Balance Partners' Capital Attributable to Noncontrolling Interest Net Income Unit Distributions Contributions Distributions Other Comprehensive Income Reallocation - Additional Paid-in-Capital Reallocation - Other Comprehensive Income Ending Balance Ending Balance Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Other Real Estate Partnerships' Summarized Balance Sheet Schedule of Variable Interest Entities [Table Text Block] Statement of Financial Position [Abstract] Real Estate and Other Assets Held for Sale, Accumulated Depreciation and Amortization Real Estate Held For Sale Accumulated Depreciation And Amortization The cumulative amount of depreciation and amortization for the carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity. Common Stock, par value Common Stock, Par or Stated Value Per Share Common Stock, shares issued Common Stock, Shares, Issued Common Stock, shares outstanding Common Stock, Shares, Outstanding General Partner Units, units outstanding General Partners' Capital Account, Units Outstanding Limited Partner Units, units outstanding Limited Partners' Capital Account, Units Outstanding Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Indebtedness Debt Disclosure [Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2017 Notes Senior Notes Due Two Thousand Seventeen Notes [Member] Senior notes due two thousand sixteen notes. 2027 Notes Senior Notes Due Two Thousand Twenty Seven Notes [Member] Senior notes due two thousand twenty seven notes. 2028 Notes Senior Notes Due Two Thousand Twenty Eight Notes [Member] Senior notes due two thousand twenty eight notes. 2032 Notes Senior Notes Due Two Thousand Thirty Two Notes [Member] Senior notes due two thousand thirty two notes. 2017 II Notes Senior Notes Due Two Thousand Seventeen Two Notes [Member] Senior notes due two thousand seventeen two notes. 2027 Private Placement Notes Private Placement Notes Due Two Thousand Twenty Seven Two Notes [Member] Private Placement Notes Due Two Thousand Twenty Seven Two Notes [Member] 2029 Private Placement Notes Private Placement Notes Due Two Thousand Twenty Nine Notes [Member] Private Placement Notes Due Two Thousand Twenty Nine Notes [Member] 2014 Unsecured Term Loan (A) UnsecuredDebtOne [Member] Debt obligation not collateralized by pledge of, mortgage of or other lien on the entity's assets. 2015 Unsecured Term Loan (A) UnsecuredDebtTwo [Member] Debt obligation not collateralized by pledge of, mortgage of or other lien on the entity's assets. Mortgage Loans Payable, Gross Secured Debt Gross Secured debt gross. Unamortized Deferred Financing Costs Unamortized Debt Issuance Expense Unamortized Premiums Debt Instrument, Unamortized Premium Senior Unsecured Notes, Gross Unsecured Debt Gross Unsecured debt gross. Unamortized Discounts Debt Instrument, Unamortized Discount Senior Unsecured Notes, Net Unsecured Debt Unsecured Term Loans, Gross Other Long-Term Debt Gross Other Long-Term Debt Gross Unsecured Term Loans, Net Other Long-term Debt Unsecured Credit Facility Long-term Line of Credit Interest Rate Debt Instrument, Interest Rate, Stated Percentage Interest Rate Line of Credit Facility, Interest Rate at Period End Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Maturity Date Range, Start Debt Instrument, Maturity Date Range, Start Maturity Date Range, End Debt Instrument, Maturity Date Range, End Maturity Date Debt Instrument, Maturity Date Land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Buildings and Improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Other Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Schedule of Acquired Finite-Lived Intangible Asset by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] In-Place Leases, Acquired-in-Place [Member] Below Market Leases Off-Market Favorable Lease [Member] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Acquired finite lived intangible assets, fair value Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Acquired finite lived intangible assets, weighted average life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Total Purchase Price Benefit Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Interest Rate Protection Agreements Comprehensive Loss Attributable to Noncontrolling Interest of the Company Accumulated Other Comprehensive Income (Loss) Attributable to Noncontrolling Interest [Member] Accumulated Other Comprehensive Income (Loss) Attributable to Noncontrolling Interest [Member] Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income Before Reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts Reclassified from Accumulated Other Comprehensive Loss Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Net Current Period Other Comprehensive Income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Balance Investment in Real Estate: Real Estate Investment Property, Net [Abstract] Land Land Buildings and Improvements Investment Building and Building Improvements Construction in Progress Development in Process Less: Accumulated Depreciation Real Estate Investment Property, Accumulated Depreciation Net Investment in Real Estate Real Estate and Other Assets Held for Sale, Net of Accumulated Depreciation and Amortization of $6,048 and $1,471 Real Estate Held-for-sale Cash and Cash Equivalents Restricted Cash Restricted Cash and Cash Equivalents Tenant Accounts Receivable, Net Accounts Receivable, Net Deferred Rent Receivable, Net Deferred Rent Receivables, Net Deferred Leasing Intangibles, Net Finite-Lived Intangible Assets, Net Prepaid Expenses and Other Assets, Net Prepaid Expense and Other Assets LIABILITIES AND EQUITY/PARTNERS' CAPITAL Liabilities: Liabilities [Abstract] Indebtedness: Long-term Debt, Unclassified [Abstract] Accounts Payable, Accrued Expenses and Other Liabilities Accounts Payable and Accrued Liabilities Deferred Leasing Intangibles, Net Off-market Lease, Unfavorable Rents Received in Advance and Security Deposits Customer Advances and Deposits Total Liabilities Liabilities Commitments and Contingencies Commitments and Contingencies Equity/Partners' Capital: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] First Industrial Realty Trust Inc.’s Stockholders’ Equity/First Industrial, L.P.'s Partners' Capital: Stockholders' Equity Attributable to Parent [Abstract] Common Stock ($0.01 par value, 225,000,000 and 150,000,000 shares authorized and 119,848,054 and 117,107,746 shares issued and outstanding) Common Stock, Value, Issued Additional Paid-in-Capital Additional Paid in Capital General Partner Units (119,848,054 and 117,107,746 units outstanding) General Partners' Capital Account Limited Partners Units (4,039,375 and 4,039,375 units outstanding) Limited Partners' Capital Account Distributions in Excess of Accumulated Earnings Accumulated Distributions in Excess of Net Income Accumulated Other Comprehensive Loss Total First Industrial L.P.'s Partners’ Capital Total First Industrial Realty Trust, Inc.’s Stockholders’ Equity Stockholders' Equity Attributable to Parent Noncontrolling Interest Noncontrolling Interest Total Equity Total Partners’ Capital Unamortized deferred financing costs Extinguishment of debt, amount Extinguishment of Debt, Amount Net carrying value of industrial properties collateralized by mortgage loans Debt Instrument, Collateral Amount