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The Company (Details) | Dec. 31, 2014 state Property
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Number of consolidated properties | 215 us-gaap_NumberOfRealEstateProperties
Number of states in which entity has interests | 40 us-gaap_NumberOfStatesInWhichEntityOperates

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- 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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Details
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Balance Type: | na
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