Derivatives - Gain (loss) on Derivative Instruments , Net (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Derivative [Line Items]
(Loss) gain on derivative instruments, net	$ (58,093)	$ 41,135	$ (176,181)	$ 165,771
Short position \| U.S. Treasury futures
Derivative [Line Items]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	6,320	64,210	(38,027)	204,021
Short position \| Interest rate swaps
Derivative [Line Items]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	(72,203)	(90)	(188,930)	(90)
Long position \| Interest Rate Swaption
Derivative [Line Items]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	182	0	993	0
Long position \| TBA securities
Derivative [Line Items]
Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net	$ 7,608	$ (22,985)	$ 49,783	$ (38,160)

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Aggregate net gain and losses (whether realized or unrealized) on all derivative instruments held for trading purposes whether or not settled physically.

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Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

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