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Real Estate (Real Estate Impairments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Real Estate [Abstract] |  |  |  |
Impairment losses – real estate and other charges, net of recoveries | $ 7,187 | $ 3,835 | $ 10,432 | $ 6,083

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- Definition Impairment Losses and Other Charges, Net of Recoveries + References No definition available. + Details
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Balance Type: | debit
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration