Consolidated and Combined Statements of Operations (USD $) In Thousands, except Share data	3 Months Ended	6 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2010 STAG Predecessor Group	Apr. 19, 2011 STAG Predecessor Group	Sep. 30, 2010 STAG Predecessor Group
Revenue
Rental income	$ 15,282	$ 25,007	$ 5,969	$ 7,027	$ 18,543
Tenant recoveries	1,438	2,511	719	1,218	3,164
Other income	321	588
Total revenue	17,041	28,106	6,688	8,245	21,707
Expenses
Property	1,350	2,159	831	1,236	2,576
General and administrative	2,453	4,513	62	318	293
Real estate taxes and insurance	1,314	2,232	778	909	2,347
Asset management fees			152	179	449
Property acquisition costs	368	695
Depreciation and amortization	8,332	14,778	3,132	2,459	8,458
Total expenses	13,817	24,377	4,955	5,101	14,123
Other income (expense)
Interest income	6	15	2	1	4
Interest expense	(4,433)	(7,618)	(3,613)	(4,136)	(10,547)
Gain (loss) on interest rate swaps	770	1,270	(94)	762	(1,029)
Formation transaction costs	(61)	(3,789)
Offering costs	(78)	(78)
Total other income (expense)	(3,796)	(10,200)	(3,705)	(3,373)	(11,572)
Net loss	(572)	(6,471)	(1,972)	(229)	(3,988)
Net loss attributable to noncontrolling interest	(188)	(2,155)
Net loss attributable to the Company	$ (384)	$ (4,316)
Weighted average common shares outstanding - basic (in shares)	15,815,282	15,524,807
Weighted average common shares outstanding - diluted (in shares)	15,815,282	15,524,807
Loss per share - basic and diluted (in dollars per share)	$ (0.02)	$ (0.28)
Dividends, declared per common share (in dollars per share)	$ 0.2600	$ 0.4657