INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues:
Rental	$ 133,782	$ 121,475	$ 379,860	$ 345,841
Other	3,756	3,780	15,611	11,270
Total revenues	137,538	125,255	395,471	357,111
Operating expenses:
Property operating costs	43,979	44,730	125,109	117,403
Real estate taxes and insurance	4,005	3,713	12,023	10,435
Depreciation and amortization	51,378	42,875	144,002	123,144
General and administrative	22,082	19,504	64,156	59,519
Transaction, integration, and impairment costs	1,078	827	1,675	3,080
Total operating expenses	122,522	111,649	346,965	313,581
Gain on sale of real estate, net	0	0	0	13,408
Operating income	15,016	13,606	48,506	56,938
Other income and expense:
Interest income	0	22	2	103
Interest expense	(7,516)	(6,724)	(21,602)	(20,329)
Other income	0	370	159	330
Equity in net loss of unconsolidated entity	(366)	(317)	(1,633)	(992)
Income before taxes	7,134	6,957	25,432	36,050
Tax expense	(227)	(369)	(196)	(779)
Net income	6,907	6,588	25,236	35,271
Net (income) loss attributable to noncontrolling interests	18	49	(408)	(1,593)
Net income attributable to QTS Realty Trust, Inc.	6,925	6,637	24,828	33,678
Preferred stock dividends	(7,045)	(7,045)	(21,135)	(21,135)
Net income (loss) attributable to common stockholders	$ (120)	$ (408)	$ 3,693	$ 12,543
Net income (loss) per share attributable to common shares:
Basic (in dollars per share)	$ (0.07)	$ (0.05)	$ (0.13)	$ 0.12
Diluted (in dollars per share)	$ (0.07)	$ (0.05)	$ (0.13)	$ 0.12
QualityTech, LP
Revenues:
Rental	$ 133,782	$ 121,475	$ 379,860	$ 345,841
Other	3,756	3,780	15,611	11,270
Total revenues	137,538	125,255	395,471	357,111
Operating expenses:
Property operating costs	43,979	44,730	125,109	117,403
Real estate taxes and insurance	4,005	3,713	12,023	10,435
Depreciation and amortization	51,378	42,875	144,002	123,144
General and administrative	22,082	19,504	64,156	59,519
Transaction, integration, and impairment costs	1,078	827	1,675	3,080
Total operating expenses	122,522	111,649	346,965	313,581
Gain on sale of real estate, net	0	0	0	13,408
Operating income	15,016	13,606	48,506	56,938
Other income and expense:
Interest income	0	22	2	103
Interest expense	(7,516)	(6,724)	(21,602)	(20,329)
Other income	0	370	159	330
Equity in net loss of unconsolidated entity	(366)	(317)	(1,633)	(992)
Income before taxes	7,134	6,957	25,432	36,050
Tax expense	(227)	(369)	(196)	(779)
Net income	6,907	6,588	25,236	35,271
Preferred stock dividends	(7,045)	(7,045)	(21,135)	(21,135)
Net income (loss) attributable to common stockholders	$ (138)	$ (457)	$ 4,101	$ 14,136