INTERIM CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Rental	$ 114,977	$ 101,086	$ 224,366	$ 201,014
Rental	114,977	101,086	224,366	201,014
Other	4,190	11,191	7,490	24,960
Total revenues	119,167	112,277	231,856	225,974
Operating Expenses:
Property operating costs	38,570	36,558	72,673	74,298
Real estate taxes and insurance	3,355	2,903	6,722	5,808
Depreciation and amortization	41,481	37,820	80,269	73,733
General and administrative	20,124	21,031	40,015	43,265
Transaction and integration costs	1,039	653	2,253	1,573
Restructuring		11,430		19,960
Total operating expenses	104,569	110,395	201,932	218,637
Gain on sale of real estate, net			13,408
Operating income	14,598	1,882	43,332	7,337
Other income and expenses:
Interest income	36	25	81	26
Interest expense	(6,459)	(8,203)	(13,605)	(16,313)
Other income (expense)	(40)		(40)
Equity in earnings (loss) of unconsolidated entity	(401)		(675)
Income (loss) before taxes	7,734	(6,296)	29,093	(8,950)
Tax benefit (expense) of taxable REIT subsidiaries	(199)	(137)	(410)	2,265
Net income (loss)	7,535	(6,433)	28,683	(6,685)
Net (income) loss attributable to noncontrolling interests	(52)	1,002	(1,642)	1,031
Net income (loss) attributable to QTS Realty Trust, Inc.	7,483	(5,431)	27,041	(5,654)
Preferred stock dividends	(7,045)	(2,248)	(14,090)	(2,576)
Net income (loss) attributable to common stockholders	$ 438	$ (7,679)	$ 12,951	$ (8,230)
Net income (loss) per share attributable to common shares:
Basic (in dollars per share)	$ (0.03)	$ (0.16)	$ 0.17	$ (0.17)
Diluted (in dollars per share)	$ (0.03)	$ (0.16)	$ 0.17	$ (0.17)
Qualitytech, LP
Revenues:
Rental	$ 114,977	$ 101,086	$ 224,366	$ 201,014
Other	4,190	11,191	7,490	24,960
Total revenues	119,167	112,277	231,856	225,974
Operating Expenses:
Property operating costs	38,570	36,558	72,673	74,298
Real estate taxes and insurance	3,355	2,903	6,722	5,808
Depreciation and amortization	41,481	37,820	80,269	73,733
General and administrative	20,124	21,031	40,015	43,265
Transaction and integration costs	1,039	653	2,253	1,573
Restructuring		11,430		19,960
Total operating expenses	104,569	110,395	201,932	218,637
Gain on sale of real estate, net			13,408
Operating income	14,598	1,882	43,332	7,337
Other income and expenses:
Interest income	36	25	81	26
Interest expense	(6,459)	(8,203)	(13,605)	(16,313)
Other income (expense)	(40)		(40)
Equity in earnings (loss) of unconsolidated entity	(401)		(675)
Income (loss) before taxes	7,734	(6,296)	29,093	(8,950)
Tax benefit (expense) of taxable REIT subsidiaries	(199)	(137)	(410)	2,265
Net income (loss)	7,535	(6,433)	28,683	(6,685)
Preferred stock dividends	(7,045)	(2,248)	(14,090)	(2,576)
Net income (loss) attributable to common stockholders	$ 490	$ (8,681)	$ 14,593	$ (9,261)