Investments in Debt Securities and Notes Receivable - Schedule (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Dividends Receivable	$ 29,945	$ 4,889
Investments in debt securities and notes receivable	606,115	593,810
Notes Receivable-Bridge Loans
Schedule of Held-to-maturity Securities [Line Items]
Notes receivable	174,215	187,368
Notes Receivable-Senior Mezzanine Loan
Schedule of Held-to-maturity Securities [Line Items]
Notes receivable	101,955	101,553
JCAP Series A Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Debt securities	200,000	200,000
JCAP Series B Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Debt securities	$ 100,000	$ 100,000

Debt Securities, Held To Maturity And Financing Receivable, After Allowance For Credit Loss, And Interest Receivable

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Carrying amount as of the balance sheet date of dividends declared but not received.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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