Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Oct. 14, 2013 Historical Predecessor [Member]	Dec. 31, 2012 Historical Predecessor [Member]	Dec. 31, 2011 Historical Predecessor [Member]
Revenues:
Rental	$ 33,304	$ 112,002	$ 120,758	$ 104,051
Recoveries from customers	2,674	10,424	9,294	12,154
Cloud and managed services	4,074	13,457	14,497	12,173
Other	410	1,542	1,210	2,018
Total revenues	40,462	137,425	145,759	130,396
Operating expenses:
Property operating costs	13,482	47,268	51,506	57,900
Real estate taxes and insurance	1,016	3,476	3,632	2,621
Depreciation and amortization	11,238	36,120	34,932	26,165
General and administrative	8,457	30,726	35,986	28,470
Transaction costs	66	52	897
Gain on legal settlement				(3,357)
Restructuring charge			3,291
Total operating expenses	34,259	117,642	130,244	111,799
Operating income	6,203	19,783	15,515	18,597
Other income and expenses:
Interest income	1	17	61	71
Interest expense	(2,049)	(16,675)	(25,140)	(19,713)
Other (expense) income, net	(153)	(3,277)	(1,151)	136
Income (loss) before gain on sale of real estate	4,002	(152)	(10,715)	(909)
Gain on sale of real estate			948
Net income (loss)	4,002	(152)	(9,767)	(909)
Net income attributable to noncontrolling interests	(848)
Net income (loss) attributable to QTS Realty Trust, Inc	3,154	(152)	(9,767)	(909)
Unrealized gain (loss) on swap	74	220	(766)
Comprehensive income (loss)	$ 3,228	$ 68	$ (10,533)	$ (909)
Net income per share attributable to common shares:
Basic	$ 0.11
Diluted	$ 0.11
Weighted average common shares outstanding:
Basic	28,972,774
Diluted	36,794,215