Derivative Financial Instruments - Schedule of Fair Value and Notional Amount of Derivatives (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Fair Value	$ 48,524	$ 77,447
Notional Amount	15,224,324	41,557,599
Derivative Liabilities
Derivative [Line Items]
Fair Value	(10,912)	(28,150)
Notional Amount	2,721,920	11,088,734
Derivative Assets
Derivative [Line Items]
Fair Value	59,436	105,597
Notional Amount	12,502,404	30,468,865
TBAs | Derivative Liabilities
Derivative [Line Items]
Fair Value	(3,168)	(22,252)
Notional Amount	1,137,500	8,750,000
TBAs | Derivative Assets
Derivative [Line Items]
Fair Value	5,636	38,686
Notional Amount	2,425,000	14,690,000
Interest rate futures | Derivative Liabilities
Derivative [Line Items]
Fair Value	(1,121)	(4,721)
Notional Amount	566,700	1,969,000
Interest rate futures | Derivative Assets
Derivative [Line Items]
Fair Value	2,463	17,772
Notional Amount	1,072,400	2,431,300
Swaptions | Derivative Assets
Derivative [Line Items]
Fair Value	29,616	31,119
Notional Amount	5,700,000	9,850,000
LPCs and IRLCs | Derivative Liabilities
Derivative [Line Items]
Fair Value	(6,623)	(1,177)
Notional Amount	1,017,720	369,734
LPCs and IRLCs | Derivative Assets
Derivative [Line Items]
Fair Value	21,721	18,020
Notional Amount	$ 3,305,004	$ 3,497,565