CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Rental	$ 519,858	$ 465,123	$ 413,620
Other	19,510	15,695	36,904
Total revenues	539,368	480,818	450,524
Operating expenses:
Property operating costs	168,497	156,048	148,236
Real estate taxes and insurance	16,020	14,503	12,193
Depreciation and amortization	199,889	168,305	149,891
General and administrative	84,965	80,385	80,857
Transaction, integration, and impairment costs	4,340	15,190	2,743
Restructuring	0	0	37,943
Total operating expenses	473,711	434,431	431,863
(Gain) loss on sale of real estate, net	0	14,769	0
Operating income	65,657	61,156	18,661
Other income and expense:
Interest income	2	111	150
Interest expense	(30,724)	(26,593)	(28,749)
Debt restructuring costs	(18,036)	(1,523)	(605)
Other income (expense)	159	(50)	0
Equity in net loss of unconsolidated entity	(2,044)	(1,473)	0
Income (loss) before taxes	15,014	31,628	(10,543)
Tax benefit (expense)	(438)	37	3,368
Net income (loss)	14,576	31,665	(7,175)
Net (income) loss attributable to noncontrolling interests	1,330	(374)	2,715
Net income (loss) attributable to QTS Realty Trust, Inc.	15,906	31,291	(4,460)
Preferred stock dividends	(28,180)	(28,180)	(16,666)
Net income (loss) attributable to common stockholders	$ (12,274)	$ 3,111	$ (21,126)
Net loss per share attributable to common shares:
Basic (in dollars per share)	$ (0.47)	$ (0.09)	$ (0.44)
Diluted (in dollars per share)	$ (0.47)	$ (0.09)	$ (0.44)
Weighted average Class A common shares outstanding:
Basic (in shares)	60,717,301	54,836,801	50,432,590
Diluted (in shares)	60,717,301	54,836,801	50,432,590