CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 62,344	$ 68,403
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	46,751	49,084
Amortization of Deferred Financing Costs	1,558	1,655
Other Amortization, including Stock Based Compensation	14,939	14,892
Provision for Bad Debt	127	491
Gain on Sale of Real Estate	(28,869)	(44,026)
Loss from Retirement of Debt	1,653	0
Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	(938)	1,371
Increase in Deferred Rent Receivable, Net	(2,936)	(3,303)
Decrease in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	(729)	(13,889)
Payments of Prepayment Penalties and Discounts Associated with Retirement of Debt	(1,453)	(554)
Net Cash Provided by Operating Activities	92,447	74,124
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(96,492)	(71,223)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(72,125)	(67,176)
Net Proceeds from Sales of Investments in Real Estate	56,773	96,849
Decrease in Escrows	4,866	12,457
Net Cash Used in Investing Activities	(106,978)	(29,093)
CASH FLOWS FROM FINANCING ACTIVITIES:
Financing and Equity Issuance Costs	1,829	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)	(5,230)
Common Stock Dividends and Unit Distributions Paid	(48,493)	(36,658)
Repayments on Mortgage Loans Payable	(41,507)	(63,690)
Proceeds from Senior Unsecured Notes	200,000	0
Repayments of Senior Unsecured Notes	(101,871)	(159,125)
Proceeds from Unsecured Credit Facility	262,000	343,000
Repayments on Unsecured Credit Facility	(324,500)	(247,500)
Net Cash Provided by (Used in) Financing Activities	16,279	(44,642)
Net Increase (Decrease) in Cash and Cash Equivalents	1,748	389
Cash and Cash Equivalents, Beginning of Year	9,859	3,987
Cash and Cash Equivalents, End of Period	11,607	4,376
SUPPLEMENTAL INFORMATION TO STATEMENTS OF CASH FLOWS:
Interest Expense Capitalized in Connection with Development Activity	1,907	1,319
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	26,715
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	305	5,127
Accounts Payable Related to Construction in Progress and Additions to Investment in Real Estate	19,786	25,518
Write-off of Fully Depreciated Assets	(15,295)	(25,543)
Noncontrolling Interest
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	2,073
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock/General Partner Units	0	(107)
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	0	107
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	26,715	23,284
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock/General Partner Units		107
First Industrial, L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	62,344	68,403
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	46,751	49,084
Amortization of Deferred Financing Costs	1,558	1,655
Other Amortization, including Stock Based Compensation	14,939	14,892
Provision for Bad Debt	127	491
Gain on Sale of Real Estate	(28,869)	(44,026)
Loss from Retirement of Debt	1,653	0
Increase in Tenant Accounts Receivable, Prepaid Expenses and Other Assets, Net	(876)	1,530
Increase in Deferred Rent Receivable, Net	(2,936)	(3,303)
Decrease in Accounts Payable, Accrued Expenses, Other Liabilities, Rents Received in Advance and Security Deposits	(729)	(13,889)
Payments of Prepayment Penalties and Discounts Associated with Retirement of Debt	(1,453)	(554)
Net Cash Provided by Operating Activities	92,509	74,283
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisitions of Real Estate	(96,492)	(71,223)
Additions to Investment in Real Estate and Non-Acquisition Tenant Improvements and Lease Costs	(72,125)	(67,176)
Net Proceeds from Sales of Investments in Real Estate	56,773	96,849
Decrease in Escrows	4,866	12,457
Net Cash Used in Investing Activities	(106,978)	(29,093)
CASH FLOWS FROM FINANCING ACTIVITIES:
Financing and Equity Issuance Costs	1,829	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)	(5,230)
Common Stock Dividends and Unit Distributions Paid	(48,493)	(36,658)
Contributions from Noncontrolling Interests	20	15
Distributions to Noncontrolling Interests	(82)	(174)
Repayments on Mortgage Loans Payable	(41,507)	(63,690)
Proceeds from Senior Unsecured Notes	200,000	0
Repayments of Senior Unsecured Notes	(101,871)	(159,125)
Proceeds from Unsecured Credit Facility	262,000	343,000
Repayments on Unsecured Credit Facility	(324,500)	(247,500)
Net Cash Provided by (Used in) Financing Activities	16,217	(44,801)
Net Increase (Decrease) in Cash and Cash Equivalents	1,748	389
Cash and Cash Equivalents, Beginning of Year	9,859	3,987
Cash and Cash Equivalents, End of Period	11,607	4,376
SUPPLEMENTAL INFORMATION TO STATEMENTS OF CASH FLOWS:
Interest Expense Capitalized in Connection with Development Activity	1,907	1,319
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	26,715
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	305	5,127
Accounts Payable Related to Construction in Progress and Additions to Investment in Real Estate	19,786	25,518
Write-off of Fully Depreciated Assets	(15,295)	(25,543)
First Industrial, L.P. | Limited Partner Units
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	2,073
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock/General Partner Units	0	(107)
First Industrial, L.P. | General Partner Units
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	60,218
Exchange of Limited Partnership Units for Common Stock/General Partnership Units:
Conversion of Limited Partner Units to Common Stock/General Partner Units	0	107
First Industrial, L.P. | Common Stock
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Dividends and Distributions Payable	$ 26,715	$ 23,284