DERIVATIVE INSTRUMENTS - Summary of Fair Value Information about Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative assets	$ 225,351	$ 162,557
Derivative liabilities	59,586	302,295
Interest rate swaps, at fair value
Derivatives, Fair Value [Line Items]
Derivative assets	21,226	26,344
Derivative liabilities	7,212	83,051
Interest rate swaptions
Derivatives, Fair Value [Line Items]
Derivative assets	0	105,883
TBA derivatives
Derivatives, Fair Value [Line Items]
Derivative assets	8,635	20,689
Derivative liabilities	30,539	39,070
Futures contracts
Derivatives, Fair Value [Line Items]
Derivative assets	190,980	0
Derivative liabilities	16,650	179,835
Purchase commitments
Derivatives, Fair Value [Line Items]
Derivative assets	4,510	9,641
Derivative liabilities	$ 5,185	$ 339