Earnings Per Share - Computation of Basic and Diluted Earning Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerator:
Income from Continuing Operations	$ 4,334	$ 873
Gain on Sale of Real Estate	0	262
Noncontrolling Interest Allocable to Continuing Operations	(75)	120
Income from Continuing Operations Allocable to Participating Securities	(23)	(36)
Income from Continuing Operations Attributable to First Industrial Realty Trust, Inc.	4,236	1,219
Preferred Dividends	(1,019)	(3,837)
Redemption of Preferred Stock	(1,462)	0
Income (Loss) from Continuing Operations Available to First Industrial Realty Trust, Inc.’s Common Stockholders	1,755	(2,618)
Income (Loss) from Discontinued Operations	733	(2,258)
Noncontrolling Interest Allocable to Discontinued Operations	(29)	100
Income from Discontinued Operations Allocable to Participating Securities	(9)	0
Income (Loss) from Discontinued Operations Attributable to First Industrial Realty Trust, Inc.	695	(2,158)
Net Income (Loss) Available to First Industrial Realty Trust, Inc.’s Common Stockholders and Participating Securities	2,482	(4,740)
Net Income Allocable to Participating Securities	(32)	(36)
Net Income (Loss) Available to First Industrial Realty Trust, Inc.’s Common Stockholders	$ 2,450	$ (4,776)
Denominator:
Weighted Average Shares Outstanding - Basic	109,676	100,774
LTIP Unit Awards	539	0
Weighted Average Number of Shares Outstanding, Diluted	110,215	100,774
Basic and Diluted EPS:
Income (Loss) from Continuing Operations Available to First Industrial Realty Trust, Inc.’s Common Stockholders	$ 0.02	$ (0.03)
Income (Loss) from Discontinued Operations Attributable to First Industrial Realty Trust, Inc.’s Common Stockholders	$ 0.00	$ (0.02)
Net Income (Loss) Available to First Industrial Realty Trust, Inc.’s Common Stockholders	$ 0.02	$ (0.05)