INTERIM CONSOLIDATED FINANCIAL STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income (loss)	$ (6,433)	$ 4,608	$ (6,685)	$ 10,176
Other comprehensive income (loss):
Increase (decrease) in fair value of interest rate swaps	2,563	(1,499)	8,545	(1,499)
Reclassification of other comprehensive income to interest expense	91		493
Comprehensive income (loss)	(3,779)	3,109	2,353	8,677
Comprehensive (income) loss attributable to noncontrolling interests	431	(385)	(271)	(1,076)
Comprehensive income (loss) attributable to QTS Realty Trust, Inc.	(3,348)	2,724	2,082	7,601
Qualitytech, LP
Net income (loss)	(6,433)	4,608	(6,685)	10,176
Other comprehensive income (loss):
Increase (decrease) in fair value of interest rate swaps	2,563	(1,499)	8,545	(1,499)
Reclassification of other comprehensive income to interest expense	91		493
Comprehensive income (loss)	$ (3,779)	$ 3,109	$ 2,353	$ 8,677