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Real Estate (Impairments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Real Estate [Abstract] |  |  |  |
Impairment losses – real estate and other charges, net of recoveries | $ 78 | $ 4,917 | $ 1,245 | $ 7,680

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration