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Derivatives Volume of Activity (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 USD ($)
Not Designated as Hedging Instrument, Economic Hedge | U.S. Treasury futures | Short position |
Derivatives [Roll Forward] |
Derivative, Notional Amount | $ 4,880,000
Derivative, Notional Amount, Derivative Instruments Added | 5,325,000
Derivative, Notional Amount, Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | (5,030,000)
Derivative, Notional Amount | 5,175,000
Not Designated as Hedging Instrument, Trading | TBA securities | Long position |
Derivatives [Roll Forward] |
Derivative, Notional Amount | 1,403,000
Derivative, Notional Amount, Derivative Instruments Added | 5,811,000
Derivative, Notional Amount, Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | (4,761,000)
Derivative, Notional Amount | $ 2,453,000

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