Consolidated and Combined Statements of Cash Flows (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Apr. 19, 2011 STAG Predecessor Group	Jun. 30, 2010 STAG Predecessor Group
Cash flows from operating activities:
Net loss	$ (5,899)	$ (229)	$ (2,016)
Adjustment to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	6,446	2,459	5,326
Amortization of deferred financing costs	264	31	58
Intangible amortization in rental income	869	(2)	(14)
Tenant straight line receivable, net	(326)	(16)	(464)
(Gain) loss on interest rate swaps	(500)	(762)	935
Stock-based compensation expense	156
Change in assets and liabilities:
Tenant accounts receivable, net	(42)	88	360
Leasing commissions, net	(25)	(24)	(26)
Restricted cash-escrow	(171)
Prepaid expenses and other assets	450	(87)	159
Accounts payable, accrued expenses and other liabilities	(429)	106	(257)
Tenant prepaid rent and security deposits	843	169	(922)
Due to related parties	746	767	1,559
Due from related parties	(596)	(141)	28
Total adjustments	7,685	2,588	6,742
Net cash provided by operating activities	1,786	2,359	4,726
Cash flows from investing activities:
Additions of land and building improvements	(12,349)	(39)	(761)
Restricted cash-escrow	(540)	(542)	(369)
Cash paid for contributed assets, net	(2,159)
Cash paid for deal deposits	(1,065)
Additions to lease intangibles	(5,686)
Net cash used in investing activities	(21,799)	(581)	(1,130)
Cash flows from financing activities:
Proceeds from issuance of common stock, net	205,563
Offering costs related to issuance of common stock	(17,042)
Redemption of initial capitalization of STAG Industrial, Inc. shares	(2)
Proceeds from notes payable to related parties		789
Repayment of notes payable to related parties	(10,366)
Proceeds from secured corporate credit facility	11,000
Repayment of secured corporate credit facility	(11,000)
Proceed from mortgage notes payable	11,400
Repayment of mortgage notes payable	(152,954)	(1,180)	(2,267)
Termination of swap contracts	(894)
Payment of loan fees and costs	(2,662)
Distributions		(2,679)	(1,712)
Net cash provided by (used in) financing activities	33,043	(3,070)	(3,979)
Increase (decrease) in cash and cash equivalents	13,030	(1,292)	(383)
Cash and cash equivalents-beginning of period	277	1,567	2,772
Cash and cash equivalents-end of period	$ 13,307	$ 275	$ 2,389