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Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases during the remainder of the fiscal year following the latest fiscal year.

No definition available.

Name:	qts_DecreaseToLesseeRentalExpenseDueToLeaseAmortizationRemainderOfFiscalYear
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Represents the amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases during the fifth fiscal year following the latest fiscal year.

No definition available.

Name:	qts_DecreaseToLesseeRentalExpenseDueToLeaseAmortizationYearFive
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Represents the amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases during the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	qts_DecreaseToLesseeRentalExpenseDueToLeaseAmortizationYearFour
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Represents the amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases during the third fiscal year following the latest fiscal year.

No definition available.

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Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the total amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases.

No definition available.

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Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount of the Entity's rental expense decrease, as lessee, due to the amortization of below market leases during the second fiscal year following the latest fiscal year.

No definition available.

Name:	qts_DecreaseToLesseeRentalExpenseDueToLeaseAmortizationYearTwo
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

N/A

No definition available.

Name:	qts_FiniteLivedIntangibleAssetsAmortizationExpenseAndOffsetsToExpenseAbstract
Namespace Prefix:	qts_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

N/A

No definition available.

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Namespace Prefix:	qts_
Data Type:	xbrli:stringItemType
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Represents the net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization during the remainder of the fiscal year following the latest fiscal year.

No definition available.

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Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the total net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization.

No definition available.

Name:	qts_NetIncreaseDecreaseToRentalRevenueAmortizationOfAboveAndBelowMarketLeasesTotal
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization during the fifth year following the latest fiscal year.

No definition available.

Name:	qts_NetIncreaseDecreaseToRentalRevenueAmortizationOfAboveAndBelowMarketLeasesYearFive
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Represents the net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization during the fourth year following the latest fiscal year.

No definition available.

Name:	qts_NetIncreaseDecreaseToRentalRevenueAmortizationOfAboveAndBelowMarketLeasesYearFour
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Represents the net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization during the third year following the latest fiscal year.

No definition available.

Name:	qts_NetIncreaseDecreaseToRentalRevenueAmortizationOfAboveAndBelowMarketLeasesYearThree
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the net amount of decrease or increase to rental revenue expected from above market or below market acquired lease amortization during the second fiscal year following the latest fiscal year.

No definition available.

Name:	qts_NetIncreaseDecreaseToRentalRevenueAmortizationOfAboveAndBelowMarketLeasesYearTwo
Namespace Prefix:	qts_
Data Type:	xbrli:monetaryItemType
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Amount of non-cash amortization of intangible asset (liability) for above and below market leases.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Namespace Prefix:	us-gaap_
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- References

No definition available.

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

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
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