Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Jun. 30, 2013	Mar. 07, 2014 Common Class A [Member]	Mar. 07, 2014 Common Class B [Member]
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Trading Symbol	QTS
Entity Registrant Name	QTS Realty Trust, Inc.
Entity Central Index Key	0001577368
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding			28,883,774	133,000
Entity Public Float		$ 0