CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 107,000	$ 101,071
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	70,697	72,317
Amortization of Deferred Financing Costs	2,336	2,437
Other Amortization, including Stock Based Compensation	22,059	21,699
Provision for Bad Debt	181	567
Gain on Sale of Real Estate	(52,140)	(60,828)
Loss from Retirement of Debt	1,653	0
Mark-to-Market Gain on Interest Rate Protection Agreements	(1,848)	0
Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	(6,792)	(2,830)
Increase in Deferred Rent Receivable, Net	(4,104)	(5,121)
Increase (Decrease) in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	9,152	(1,545)
Payments of Prepayment Penalties and Discounts Associated with Retirement of Debt	(1,453)	(554)
Net Cash Provided by Operating Activities	146,741	127,213
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(160,065)	(95,157)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(104,658)	(117,630)
Net Proceeds from Sales of Investments in Real Estate	95,233	133,602
Repayments of Notes Receivable	51	43
Decrease in Escrows	4,805	11,051
Net Cash Used in Investing Activities	(164,634)	(68,091)
CASH FLOWS FROM FINANCING ACTIVITIES:
Financing and Equity Issuance Costs	1,918	375
Proceeds from Issuance of Common Stock/Contribution of General Partner Units	74,880	124,936
Repurchase and Retirement of Restricted Stock/Units	(2,401)	(5,242)
Common Stock Dividends and Unit Distributions Paid	(74,508)	(59,678)
Repayments on Mortgage Loans Payable	(44,152)	(66,551)
Proceeds from Senior Unsecured Notes	200,000	0
Repayments of Senior Unsecured Notes	(101,871)	(159,125)
Proceeds from Unsecured Credit Facility	326,000	397,000
Repayments on Unsecured Credit Facility	(358,500)	(286,000)
Net Cash Provided by (Used in) Financing Activities	17,530	(55,035)
Net (Decrease) Increase in Cash and Cash Equivalents	(363)	4,087
Cash and Cash Equivalents, Beginning of Year	9,859	3,987
Cash and Cash Equivalents, End of Period	9,496	8,074
SUPPLEMENTAL INFORMATION TO STATEMENTS OF CASH FLOWS:
Interest Expense Capitalized in Connection with Development Activity	3,014	2,279
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	26,848
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	0	0
Assumption of Indebtedness and Other Liabilities in Connection with the Acquisition of Real Estate	1,138	5,227
Accounts Payable Related to Construction in Progress and Additions to Investment in Real Estate	23,247	28,788
Write-off of Fully Depreciated Assets	(27,455)	(34,360)
Noncontrolling Interest
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	3,531
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	(39)	(819)
Common Stock
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	0	1
Additional Paid-in- Capital
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	39	818
Common Stock
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Issuance of Common Stock/Contribution of General Partner Units	74,880
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	26,848	23,357
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	39	819
First Industrial, L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	107,000	101,071
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	70,697	72,317
Amortization of Deferred Financing Costs	2,336	2,437
Other Amortization, including Stock Based Compensation	22,059	21,699
Provision for Bad Debt	181	567
Gain on Sale of Real Estate	(52,140)	(60,828)
Loss from Retirement of Debt	1,653	0
Mark-to-Market Gain on Interest Rate Protection Agreements	(1,848)	0
Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	(6,537)	(2,680)
Increase in Deferred Rent Receivable, Net	(4,104)	(5,121)
Increase (Decrease) in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	9,152	(1,545)
Payments of Prepayment Penalties and Discounts Associated with Retirement of Debt	(1,453)	(554)
Net Cash Provided by Operating Activities	146,996	127,363
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(160,065)	(95,157)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(104,658)	(117,630)
Net Proceeds from Sales of Investments in Real Estate	95,233	133,602
Repayments of Notes Receivable	51	43
Decrease in Escrows	4,805	11,051
Net Cash Used in Investing Activities	(164,634)	(68,091)
CASH FLOWS FROM FINANCING ACTIVITIES:
Financing and Equity Issuance Costs	1,918	375
Proceeds from Issuance of Common Stock/Contribution of General Partner Units	74,880	124,936
Repurchase and Retirement of Restricted Stock/Units	(2,401)	(5,242)
Common Stock Dividends and Unit Distributions Paid	(74,508)	(59,678)
Contributions from Noncontrolling Interests	29	114
Distributions to Noncontrolling Interests	(284)	(264)
Repayments on Mortgage Loans Payable	(44,152)	(66,551)
Proceeds from Senior Unsecured Notes	200,000	0
Repayments of Senior Unsecured Notes	(101,871)	(159,125)
Proceeds from Unsecured Credit Facility	326,000	397,000
Repayments on Unsecured Credit Facility	(358,500)	(286,000)
Net Cash Provided by (Used in) Financing Activities	17,275	(55,185)
Net (Decrease) Increase in Cash and Cash Equivalents	(363)	4,087
Cash and Cash Equivalents, Beginning of Year	9,859	3,987
Cash and Cash Equivalents, End of Period	9,496	8,074
SUPPLEMENTAL INFORMATION TO STATEMENTS OF CASH FLOWS:
Interest Expense Capitalized in Connection with Development Activity	3,014	2,279
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	26,848
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	0	0
Assumption of Indebtedness and Other Liabilities in Connection with the Acquisition of Real Estate	1,138	5,227
Accounts Payable Related to Construction in Progress and Additions to Investment in Real Estate	23,247	28,788
Write-off of Fully Depreciated Assets	(27,455)	(34,360)
First Industrial, L.P. | Limited Partner Units
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	3,531
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	(39)	(819)
First Industrial, L.P. | General Partner Units
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	103,373
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock / General Partner Units	39	819
First Industrial, L.P. | Common Stock
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	$ 26,848	$ 23,357