STATEMENTS OF CASH FLOW (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flow from operating activities:
Net income	$ 10,557	$ 9,249
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	33,475	25,668
Amortization of deferred loan costs	1,585	1,314
Amortization of senior notes discount	123
Equity-based compensation expense	3,138	1,976
Bad debt expense	366	269
Write off of deferred loan costs	83	110
Deferred tax benefit	(3,135)
Changes in operating assets and liabilities
Rents and other receivables, net	(1,556)	1,592
Prepaid expenses	(2,760)	(2,501)
Other assets	(326)	(252)
Accounts payable and accrued liabilities	(1,823)	(7,996)
Advance rents, security deposits and other liabilities	(454)	(64)
Deferred income	1,888	285
Net cash provided by operating activities	41,161	29,650
Cash flow from investing activities:
Acquisitions, net of cash acquired	(288,865)	(73,300)
Additions to property and equipment	(170,150)	(114,157)
Cash used in investing activities	(459,015)	(187,457)
Cash flow from financing activities:
Credit facility proceeds	350,162	182,500
Debt repayment	(260,000)
Payment of deferred financing costs	(512)	(924)
Payment of cash dividend	(19,673)	(15,368)
Distribution to noncontrolling interest	(4,414)	(4,654)
Principal payments on capital lease obligation	(1,227)	(367)
Scheduled mortgage principal debt repayments	(16,600)	(1,100)
Equity proceeds, net of costs	370,074
Net cash provided by financing activities	417,810	160,087
Net (decrease) increase in cash and cash equivalents	(44)	2,279
Cash and cash equivalents, beginning of period	10,788	5,210
Cash and cash equivalents, end of period	10,744	7,489
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (excluding deferred financing costs and amounts capitalized)	8,866	2,973
Noncash investing and financing activities:
Accrued capital additions	56,366	32,638
Capital lease and lease financing obligations acquired	43,832
Qualitytech, LP [Member]
Cash flow from operating activities:
Net income	10,557	9,249
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	33,475	25,668
Amortization of deferred loan costs	1,585	1,314
Amortization of senior notes discount	123
Equity-based compensation expense	3,138	1,976
Bad debt expense	366	269
Write off of deferred loan costs	83	110
Deferred tax benefit	(3,135)
Changes in operating assets and liabilities
Rents and other receivables, net	(1,556)	1,592
Prepaid expenses	(2,760)	(2,501)
Other assets	(326)	(252)
Accounts payable and accrued liabilities	(1,823)	(7,996)
Advance rents, security deposits and other liabilities	(454)	(64)
Deferred income	1,888	285
Net cash provided by operating activities	41,161	29,650
Cash flow from investing activities:
Acquisitions, net of cash acquired	(288,865)	(73,300)
Additions to property and equipment	(170,150)	(114,157)
Cash used in investing activities	(459,015)	(187,457)
Cash flow from financing activities:
Credit facility proceeds	350,162	182,500
Debt repayment	(260,000)
Payment of deferred financing costs	(512)	(924)
Payment of cash dividend	(19,673)	(15,368)
Partnership distributions	(4,414)	(4,654)
Principal payments on capital lease obligation	(1,227)	(367)
Scheduled mortgage principal debt repayments	(16,600)	$ (1,100)
Equity proceeds, net of costs	370,074
Net cash provided by financing activities	417,810	$ 160,087
Net (decrease) increase in cash and cash equivalents	(44)	2,279
Cash and cash equivalents, beginning of period	10,788	5,210
Cash and cash equivalents, end of period	10,744	7,489
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (excluding deferred financing costs and amounts capitalized)	8,866	2,973
Noncash investing and financing activities:
Accrued capital additions	56,366	$ 32,638
Capital lease and lease financing obligations acquired	$ 43,832