DERIVATIVES AND HEDGING - Schedule of Gain (Loss) on Derivatives and Hedging (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative [Line Items]
Total gain (loss)	$ 1,581	$ 266,582	$ 88,908	$ 82,585
Gain (loss) on settlement of residential mortgage loan	$ 10,077	$ (11,483)	$ (5,447)	$ (1,579)
Gain on originated residential mortgage loans, held-for-sale, net
Derivative [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate	Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate	Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate	Origination and Servicing, Investment Portfolio, Mortgage Loans Receivable and Corporate
Total gain (loss)	$ 667	$ 50,630	$ 46,062	$ 17,640
Realized and unrealized gains (losses), net
Derivative [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Realized and unrealized gains (losses), net	Realized and unrealized gains (losses), net	Realized and unrealized gains (losses), net	Realized and unrealized gains (losses), net
Total gain (loss)	$ 914	$ 215,952	$ 42,846	$ 64,945
IRLCs
Derivative [Line Items]
Total gain (loss)	(14,817)	(19,898)	(7,332)	6,342
TBAs | Gain on originated residential mortgage loans, held-for-sale, net
Derivative [Line Items]
Total gain (loss)	15,484	71,212	53,394	13,229
TBAs | Realized and unrealized gains (losses), net
Derivative [Line Items]
Total gain (loss)	(14,424)	507	(12,901)	(6,875)
Interest rate swaps | Gain on originated residential mortgage loans, held-for-sale, net
Derivative [Line Items]
Total gain (loss)	0	(684)	0	(1,931)
Interest rate swaps | Realized and unrealized gains (losses), net
Derivative [Line Items]
Total gain (loss)	1,429	215,445	30,590	71,820
Treasury Short Sales
Derivative [Line Items]
Total gain (loss)	12,952	0	41,297	0
Other commitments
Derivative [Line Items]
Total gain (loss)	$ 957	$ 0	$ (16,140)	$ 0