INTERIM CONSOLIDATED FINANCIAL STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net income (loss)	$ (6,892)	$ 7,394	$ (13,577)	$ 17,570
Other comprehensive income (loss):
Increase (decrease) in fair value of interest rate swaps	1,429	(286)	9,974	(1,785)
Reclassification of other comprehensive income to interest expense	(83)		410
Comprehensive income (loss)	(5,546)	7,108	(3,193)	15,785
Comprehensive (income) loss attributable to noncontrolling interests	639	(850)	368	(1,926)
Comprehensive income (loss) attributable to QTS Realty Trust, Inc.	(4,907)	6,258	(2,825)	13,859
Qualitytech, LP
Net income (loss)	(6,892)	7,394	(13,577)	17,570
Other comprehensive income (loss):
Increase (decrease) in fair value of interest rate swaps	1,429	(286)	9,974	(1,785)
Reclassification of other comprehensive income to interest expense	(83)		410
Comprehensive income (loss)	$ (5,546)	$ 7,108	$ (3,193)	$ 15,785