EXPENSES, REALIZED AND UNREALIZED GAINS (LOSSES), NET AND OTHER - Schedule of Components of Other Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Income and Expenses [Abstract]
Real estate and other securities	$ 39,362	$ (1,499,418)	$ (490,180)
Residential mortgage loans and REO	19,861	(160,985)	270,492
Derivative and hedging instruments	(54,342)	1,468,931	126,222
Notes and bonds payable	(12,843)	45,792	11,506
Other	(29,274)	(54,501)	(125,477)
Realized and unrealized gains (losses), net	(37,236)	(200,181)	(207,437)
Other income (loss)	(69,010)	(145,385)	3,241
Total other income (loss)	$ (106,246)	$ (345,566)	$ (204,196)