Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 16, 2017
Class of Stock [Line Items]
Operating Partnership, aggregate cash payment	$ 100,568
Operating Partnership, shares	2,422,744
Preferred Stock, Shares Authorized	10,000,000
Net proceeds from the issuance of common stock	$ 0	$ 145,584	$ 74,880
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ 0	$ 0	$ 0
Limited Partners' Capital Account, Units Retired		33,333
Common Stock
Class of Stock [Line Items]
Shares of common stock issued		4,800,000	2,560,000
Net proceeds from the issuance of common stock		$ 145,584	$ 74,880
Units converted to common stock	485,516	1,350,721	31,154
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ 7,196	$ 16,605	$ 364
First Industrial, L.P.
Class of Stock [Line Items]
Net proceeds from the issuance of common stock	0	145,584	74,880
Conversion of Limited Partner Units to Common Stock / General Partner Units	0	0	0
ATM [Member]
Class of Stock [Line Items]
Shares of company stock issuable under an at-the-market offering				8,000,000
Aggregate Gross Sale Proceeds				$ 200,000
Noncontrolling Interest [Member]
Class of Stock [Line Items]
Conversion of Limited Partner Units to Common Stock / General Partner Units	$ (7,196)	$ (16,605)	$ (364)