STATEMENTS OF CASH FLOW (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flow from operating activities:
Net income	$ 18,795	$ 13,255
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	57,347	40,070
Amortization of deferred loan costs	2,372	1,894
Amortization of senior notes discount	184	38
Equity-based compensation expense	5,206	2,901
Bad debt expense	640	402
Write off of deferred loan costs	83	580
Deferred tax benefit	(5,695)
Changes in operating assets and liabilities
Rents and other receivables, net	(2,382)	104
Prepaid expenses	(4,713)	(2,245)
Other assets	(352)	596
Accounts payable and accrued liabilities	(2,427)	(7,833)
Advance rents, security deposits and other liabilities	(437)	(44)
Deferred income	3,698	1,637
Net cash provided by operating activities	72,319	51,355
Cash flow from investing activities:
Acquisitions, net of cash acquired	(288,865)	(91,064)
Additions to property and equipment	(252,156)	(156,008)
Cash used in investing activities	(541,021)	(247,072)
Cash flow from financing activities:
Credit facility proceeds	420,162	230,500
Senior Notes proceeds		297,633
Debt repayment	(260,000)	(290,000)
Payment of deferred financing costs	(577)	(9,648)
Payment of cash dividend	(32,756)	(23,783)
Distribution to noncontrolling interest	(6,652)	(6,932)
Principal payments on capital lease obligation	(4,415)	(553)
Mortgage principal debt repayments	(16,600)	(1,665)
Equity proceeds, net of costs	369,482
Net cash provided by financing activities	468,644	195,552
Net decrease in cash and cash equivalents	(58)	(165)
Cash and cash equivalents, beginning of period	10,788	5,210
Cash and cash equivalents, end of period	10,730	5,045
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (excluding deferred financing costs and amounts capitalized)	17,785	4,599
Noncash investing and financing activities:
Accrued capital additions	48,540	36,381
Capital lease and lease financing obligations assumed	43,832
Qualitytech, LP [Member]
Cash flow from operating activities:
Net income	18,795	13,255
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	57,347	40,070
Amortization of deferred loan costs	2,372	1,894
Amortization of senior notes discount	184	38
Equity-based compensation expense	5,206	2,901
Bad debt expense	640	402
Write off of deferred loan costs	83	580
Deferred tax benefit	(5,695)
Changes in operating assets and liabilities
Rents and other receivables, net	(2,382)	104
Prepaid expenses	(4,713)	(2,245)
Other assets	(352)	596
Accounts payable and accrued liabilities	(2,427)	(7,833)
Advance rents, security deposits and other liabilities	(437)	(44)
Deferred income	3,698	1,637
Net cash provided by operating activities	72,319	51,355
Cash flow from investing activities:
Acquisitions, net of cash acquired	(288,865)	(91,064)
Additions to property and equipment	(252,156)	(156,008)
Cash used in investing activities	(541,021)	(247,072)
Cash flow from financing activities:
Credit facility proceeds	420,162	230,500
Senior Notes proceeds		297,633
Debt repayment	(260,000)	(290,000)
Payment of deferred financing costs	(577)	(9,648)
Payment of cash dividend	(32,756)	(23,783)
Partnership distributions	(6,652)	(6,932)
Principal payments on capital lease obligation	(4,415)	(553)
Mortgage principal debt repayments	(16,600)	$ (1,665)
Equity proceeds, net of costs	369,482
Net cash provided by financing activities	468,644	$ 195,552
Net decrease in cash and cash equivalents	(58)	(165)
Cash and cash equivalents, beginning of period	10,788	5,210
Cash and cash equivalents, end of period	10,730	5,045
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (excluding deferred financing costs and amounts capitalized)	17,785	4,599
Noncash investing and financing activities:
Accrued capital additions	48,540	$ 36,381
Capital lease and lease financing obligations assumed	$ 43,832