Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ 294	$ (4,916)	$ (308)	$ (7,805)
Other comprehensive income (loss):
Unrealized gain (loss) on interest rate swaps	(1,034)	(577)	2,632	(577)
Other comprehensive income (loss)	(1,034)	(577)	2,632	(577)
Comprehensive income (loss)	(740)	(5,493)	2,324	(8,382)
Net loss attributable to noncontrolling interest after preferred stock dividends	335	1,248	958	3,244
Other comprehensive (income) loss attributable to noncontrolling interest	143	111	(355)	150
Comprehensive income (loss) attributable to STAG Industrial, Inc.	$ (262)	$ (4,134)	$ 2,927	$ (4,988)