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Loans Receivable and Other Lending Investments, net (Credit Characteristics by Payment Status) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan
Recorded investment in loans, aged by payment status and presented by class |  |
Current | $ 668,769 | $ 863,662
Less Than and Equal to 90 Days | 0 | 0
Greater Than 90 Days | 37,820 | 60,725
Total Past Due | 37,820 | 60,725
Loans | $ 706,589 | $ 924,387
Financing receivable, number of loans greater than 90 days past due | loan | 1 | 2
Financing receivables, past due time period | 10 years 6 months | 90 days
Minimum |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Financing receivables, past due time period |  | 4 years
Maximum |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Financing receivables, past due time period |  | 9 years
Senior mortgages |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | $ 537,201 | $ 703,807
Less Than and Equal to 90 Days | 0 | 0
Greater Than 90 Days | 37,820 | 60,725
Total Past Due | 37,820 | 60,725
Loans | 575,021 | 764,532
Corporate/Partnership loans |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | 120,658 | 149,663
Less Than and Equal to 90 Days | 0 | 0
Greater Than 90 Days | 0 | 0
Total Past Due | 0 | 0
Loans | 120,658 | 149,663
Subordinate mortgages |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | 10,910 | 10,192
Less Than and Equal to 90 Days | 0 | 0
Greater Than 90 Days | 0 | 0
Total Past Due | 0 | 0
Loans | $ 10,910 | $ 10,192

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