Name:	qts_LesseeOperatingLeaseRemainingLeaseTerm
Namespace Prefix:	qts_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Represents the number of ground leases under operating leases.

No definition available.

Name:	qts_NumberOfGroundLeasesUnderOperatingLeases
Namespace Prefix:	qts_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of ground leases under operating leases, which are material.

No definition available.

Name:	qts_NumberOfGroundLeasesUnderOperatingLeasesMaterial
Namespace Prefix:	qts_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of operating leases.

No definition available.

Name:	qts_NumberOfOperatingLeases
Namespace Prefix:	qts_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Indicates (true false) whether lessee has option to extend operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980