Derivatives and Hedging Activities - Schedule of TBA Contracts (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Notional Amount	$ 4,065,000	$ 8,150,000
TBA Purchase Contracts
Derivative [Line Items]
Notional Amount	0	400,000
Implied Cost Basis		404,144
Implied Market Value		402,237
Net Carrying Value		(1,907)
Net derivative liabilities	1,900
TBA Sale Contracts
Derivative [Line Items]
Notional Amount	0	400,000
Implied Cost Basis		(402,707)
Implied Market Value		(402,237)
Net Carrying Value		470
Net derivative liabilities	172
Net derivative assets	$ 642
T B A
Derivative [Line Items]
Notional Amount		0
Implied Cost Basis		1,437
Implied Market Value		0
Net Carrying Value		$ (1,437)