Stockholders’ Equity of the Company and Partners' Capital of the Operating Partnership - Summary of Changes in Noncontrolling Interest (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Noncontrolling Interest [Line Items]
Beginning Balance			$ 41,877
Net Income	$ 548	$ 868	1,197	$ 1,137
Other Comprehensive (Loss) Income (Including a Reallocation of $3 and $6)			(1,783)
Conversion of Units to Common Stock			0	0
Reallocation - Additional Paid-in-Capital			0
Ending Balance	41,341		41,341
Noncontrolling Interest
Noncontrolling Interest [Line Items]
Beginning Balance			41,877	44,369
Net Income			1,197	1,137
Distributions			(1,669)	(1,368)
Other Comprehensive (Loss) Income (Including a Reallocation of $3 and $6)			(65)	16
Conversion of Units to Common Stock			(106)	(1,697)
Reallocation - Additional Paid-in-Capital			107	(48)
Ending Balance	41,341	42,409	41,341	42,409
Reallocation - Other Comprehensive Income (Loss)			3	6
First Industrial, L.P.
Noncontrolling Interest [Line Items]
Beginning Balance			1,101,590
Net Income	27	21	75	50
Contributions			61
Distributions			(85)
Other Comprehensive (Loss) Income (Including a Reallocation of $3 and $6)			(1,824)
Conversion of Units to Common Stock			0	0
Ending Balance	1,090,547		1,090,547
First Industrial, L.P. | Noncontrolling Interest
Noncontrolling Interest [Line Items]
Beginning Balance			1,080	1,095
Net Income			75	50
Contributions			61	57
Distributions			(85)	(388)
Ending Balance	$ 1,131	$ 814	$ 1,131	$ 814