Investments in Debt Securities and Notes Receivable - Schedule (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]
Dividends and Interest Receivable	$ 50,835	$ 66,170
Investments in debt securities and notes receivable	891,190	858,049
Notes Receivable-Bridge Loans
Schedule of Held-to-maturity Securities [Line Items]
Notes Receivable - Bridge Loans	540,355	491,879
JCAP Series A Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Debt securities - NexPoint Preferred Stock	$ 300,000	$ 300,000