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Hurricane Related Charges (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Hurricane Related Charges [Line Items] |  |  |
Casualty-related (recoveries)/charges, net | $ (2,335) | $ (541) | $ 12,253
United Dominion Reality L.P. |  |  |
Hurricane Related Charges [Line Items] |  |  |
Casualty-related (recoveries)/charges, net | $ (843) | $ (541) | $ 8,083

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- Definition Casualty (Recoveries)/Charges + References No definition available. + Details
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- Definition [Line Items] for Hurricane Related Charges [Table] + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |