Stockholders' Equity of the Company and Partners' Capital of the Operating Partnership - Summary of Changes in Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Noncontrolling Interest [Line Items]
Beginning Balance			$ 43,184
Net Income	$ 1,291	$ 1,879	2,073	$ 2,486
Unit Distributions			(51,774)
Other Comprehensive Income			899
Conversion of Limited Partner Units to Common Stock/General Partner Units			0	0
Reallocation - Additional Paid-in-Capital			0
Reallocation - Other Comprehensive Income	1,245	1,707	2,103	1,852
Ending Balance	45,116		45,116
Noncontrolling Interest
Noncontrolling Interest [Line Items]
Beginning Balance			43,184	42,035
Net Income			2,073	2,486
Unit Distributions			(1,696)	(1,632)
Other Comprehensive Income			30	(598)
Conversion of Limited Partner Units to Common Stock/General Partner Units			0	(107)
Reallocation - Additional Paid-in-Capital			1,522	2,434
Reallocation - Other Comprehensive Income			3	0
Ending Balance	45,116	44,618	45,116	44,618
First Industrial, L.P.
Noncontrolling Interest [Line Items]
Beginning Balance			956
Net Income	26	60	53	74
Contributions			20
Distributions			(82)
Other Comprehensive Income			899
Conversion of Limited Partner Units to Common Stock/General Partner Units			0	0
Reallocation - Other Comprehensive Income	26	60	53	74
Ending Balance	947		947
First Industrial, L.P. | Noncontrolling Interest
Noncontrolling Interest [Line Items]
Beginning Balance			956	1,096
Net Income			53	74
Contributions			20	15
Distributions			(82)	(174)
Ending Balance	$ 947	$ 1,011	$ 947	$ 1,011