CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues
Lease Revenue	$ 532,237	$ 473,236	$ 437,543
Joint Venture Fees	1,322	321	590
Other Revenue	6,370	2,733	9,895
Total Revenues	539,929	476,290	448,028
Expenses:
Property Expenses	143,663	131,300	119,195
General and Administrative	33,972	34,610	32,848
Joint Venture Development Services Expense	909	0	0
Depreciation and Other Amortization	147,420	130,953	129,638
Total Expenses	325,964	296,863	281,681
Other Income (Expense):
Gain on Sale of Real Estate	128,268	150,310	86,751
Interest Expense	(49,013)	(44,103)	(51,293)
Amortization of Debt Issuance Costs	(3,187)	(3,423)	(3,428)
Total Other Income (Expense)	76,068	102,784	32,030
Income from Operations Before Equity in Income (Loss) of Joint Ventures and Income Tax Provision	290,033	282,211	198,377
Equity in Income (Loss) of Joint Ventures	114,942	(161)	4,200
Income Tax Provision	(23,363)	(4,879)	(2,408)
Net Income	381,612	277,171	200,169
Less: Net Income Attributable to the Noncontrolling Interests	(22,478)	(6,174)	(4,180)
Net Income Available to Common Stockholders / Unitholders and Participating Securities	$ 359,134	$ 270,997	$ 195,989
Basic Earnings Per Share / Unit:
Net Income Available to Common Stockholders/Unitholders	$ 2.72	$ 2.09	$ 1.53
Diluted Earnings Per Share / Unit:
Net Income Available to Common Stockholders/Unitholders	$ 2.72	$ 2.09	$ 1.53
Weighted Average Shares/Units Outstanding - Basic	132,024	129,688	127,711
Weighted Average Shares / Units Outstanding - Diluted	132,103	129,775	127,904
First Industrial, L.P.
Revenues
Lease Revenue	$ 532,237	$ 473,236	$ 437,543
Joint Venture Fees	1,322	321	590
Other Revenue	6,370	2,733	9,895
Total Revenues	539,929	476,290	448,028
Expenses:
Property Expenses	143,663	131,300	119,195
General and Administrative	33,972	34,610	32,848
Joint Venture Development Services Expense	909	0	0
Depreciation and Other Amortization	147,420	130,953	129,638
Total Expenses	325,964	296,863	281,681
Other Income (Expense):
Gain on Sale of Real Estate	128,268	150,310	86,751
Interest Expense	(49,013)	(44,103)	(51,293)
Amortization of Debt Issuance Costs	(3,187)	(3,423)	(3,428)
Total Other Income (Expense)	76,068	102,784	32,030
Income from Operations Before Equity in Income (Loss) of Joint Ventures and Income Tax Provision	290,033	282,211	198,377
Equity in Income (Loss) of Joint Ventures	114,942	(161)	4,200
Income Tax Provision	(23,363)	(4,879)	(2,408)
Net Income	381,612	277,171	200,169
Less: Net Income Attributable to the Noncontrolling Interests	(14,093)	(133)	(235)
Net Income Available to Common Stockholders / Unitholders and Participating Securities	$ 367,519	$ 277,038	$ 199,934
Basic Earnings Per Share / Unit:
Net Income Available to Common Stockholders/Unitholders	$ 2.73	$ 2.10	$ 1.54
Diluted Earnings Per Share / Unit:
Net Income Available to Common Stockholders/Unitholders	$ 2.72	$ 2.09	$ 1.53
Weighted Average Shares/Units Outstanding - Basic	134,229	131,740	129,752
Weighted Average Shares / Units Outstanding - Diluted	134,681	132,237	130,127