Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ (1,427)	$ 21
Other comprehensive income (loss):
Loss on interest rate swaps	(4,005)	(1,082)
Other comprehensive loss	(4,005)	(1,082)
Comprehensive loss	(5,432)	(1,061)
Net loss attributable to noncontrolling interest after preferred stock dividends	198	364
Other comprehensive loss attributable to noncontrolling interest	192	146
Comprehensive loss attributable to STAG Industrial, Inc.	$ (5,042)	$ (551)