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v2.4.1.9

Organization and Operation (Details) | Mar. 31, 2015 sqft item
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Management Statement |
Properties owned | 4,378 us-gaap_NumberOfRealEstateProperties
Number of U.S. states where properties are owned | 49 us-gaap_NumberOfStatesInWhichEntityOperates
Leasable square feet | 71,600,000 us-gaap_AreaOfRealEstateProperty

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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