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Equity of the Company and Partners' Capital of the Operating Partnership - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Aug. 21, 2025	Feb. 24, 2023
Class of Stock [Line Items]
Operating Partnership, aggregate cash payment	$ 230,860
Operating Partnership, shares	4,031,088
Preferred Stock, Shares Authorized	10,000,000
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ 0	$ 0	$ 0
Equity in Income of Joint Venture	34,669	$ 4,295	$ 32,207
Limited Partners' Capital Account, Units Retired		4,429	330
Joint Venture
Class of Stock [Line Items]
Equity in Income of Joint Venture	9,036	$ 537	$ 3,949
Noncontrolling Interest in Joint Ventures	$ 5,971	$ 6,838
Common Stock
Class of Stock [Line Items]
Units converted to common stock	61,521	3,434	73,696
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ 1,242	$ 67	$ 1,332
First Industrial, L.P.
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units	0	0	0
Equity in Income of Joint Venture	34,669	4,295	32,207
ATM [Member]
Class of Stock [Line Items]
Shares of company stock issuable under an at-the-market offering					16,000,000
Aggregate Gross Sale Proceeds					$ 800,000
2025 ATM
Class of Stock [Line Items]
Shares of company stock issuable under an at-the-market offering				16,000,000
Aggregate Gross Sale Proceeds				$ 800,000
Noncontrolling Interest [Member]
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ (1,242)	$ (67)	$ (1,332)