Investments in Debt Securities and Notes Receivable - Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]
Dividends and Interest Receivable	$ 6,375	$ 10,042
Investments in debt securities and notes receivable	1,550,950	904,769
Notes Receivable - Bridge Loans
Schedule of Held-to-maturity Securities [Line Items]
Notes Receivable - Bridge Loans	1,244,575	594,727
NexPoint Preferred Stock
Schedule of Held-to-maturity Securities [Line Items]
Debt securities - Preferred Stock	$ 300,000	$ 300,000