INVESTMENTS - Schedule of Investments in Loans and Securities under Fair Market Adjustments (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	$ 870,061	$ 778,409
Investments in loans and securities
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	837,173	778,409
Securitization notes
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	309,651	240,273
Securitization certificates
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	525,757	533,243
Other loans and receivables
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	1,765	4,893
Investments in securities, under the fair value option
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	32,888	0
Securitization notes
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	11,544	0
Securitization certificates
Debt Securities, Available-for-Sale [Line Items]
Total investments in loans and securities	$ 21,344	$ 0