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Debt and Preferred Equity Investments - Rollforward of Total Allowance for Loan Loss Reserves (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Loan loss reserve activity |  |
Balance at beginning of year | $ 1,750 | $ 5,750
Current period provision for loan loss | 20,741 | 0
Write-offs charged against the allowance | (31,285) | (4,000)
Balance at end of period | 19,010 | 1,750
Cumulative adjustment upon adoption of ASC 326 |  |
Loan loss reserve activity |  |
Balance at beginning of year | $ 27,804 | 0
Balance at end of period |  | $ 27,804

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- Definition Debt And Equity Securities, Credit Loss Expense (Reversal) + References No definition available. + Details
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- Definition Represents the amount of reclassifications and direct write-downs of financing receivables charged against the allowance. + References No definition available. + Details
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- Definition The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118959141&loc=d3e21338-158488 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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