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Loans Receivable and Other Lending Investments, net - Credit Characteristics by Payment Status (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($)
Recorded investment in loans, aged by payment status and presented by class |  |
Current | $ 692,129 | $ 665,460
Total Past Due | 37,517 | 37,820
Total | 729,646 | 703,280
Less Than and Equal to 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | 0 | 0
Greater Than 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | $ 37,517 | $ 37,820
Financing receivable, number of loans greater than 90 days past due | loan | 1 |
Financing receivables, past due time period | 10 years 9 months 18 days | 10 years 6 months
Commercial Portfolio Segment | Senior mortgages |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | $ 558,043 | $ 534,765
Total Past Due | 37,517 | 37,820
Total | 595,560 | 572,585
Commercial Portfolio Segment | Senior mortgages | Less Than and Equal to 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due |  | 0
Commercial Portfolio Segment | Senior mortgages | Greater Than 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | 37,517 | 37,820
Commercial Portfolio Segment | Corporate/Partnership loans |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | 123,023 | 119,818
Total Past Due | 0 | 0
Total | 123,023 | 119,818
Commercial Portfolio Segment | Corporate/Partnership loans | Less Than and Equal to 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | 0 | 0
Commercial Portfolio Segment | Corporate/Partnership loans | Greater Than 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | 0 | 0
Commercial Portfolio Segment | Subordinate mortgages |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Current | 11,063 | 10,877
Total Past Due | 0 | 0
Total | 11,063 | 10,877
Commercial Portfolio Segment | Subordinate mortgages | Less Than and Equal to 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | 0 | 0
Commercial Portfolio Segment | Subordinate mortgages | Greater Than 90 Days |  |
Recorded investment in loans, aged by payment status and presented by class |  |
Total Past Due | $ 0 | $ 0

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