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v3.21.1

Derivatives Volume of Activity (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($)
Interest rate swaption |
Derivative [Line Items] |
Derivative Asset, Notional Amount | $ 1,250,000
Derivative Asset, Notional Amount | 500,000
Not Designated as Hedging Instrument, Economic Hedge | Interest rate swaption |
Derivative [Line Items] |
Derivative Asset, Notional Amount | 1,250,000
Notional Amount of Derivative Instruments Added | 0
Notional Amount of Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | 750,000
Derivative Asset, Notional Amount | 500,000
Not Designated as Hedging Instrument, Economic Hedge | U.S. Treasury futures | Short position |
Derivative [Line Items] |
Derivative Liability, Notional Amount | 825,000
Notional Amount of Derivative Instruments Added | (4,010,000)
Notional Amount of Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | 1,855,000
Derivative Liability, Notional Amount | 2,980,000
Not Designated as Hedging Instrument, Economic Hedge | Options on U.S. Treasury futures |
Derivative [Line Items] |
Derivative Asset, Notional Amount | 500,000
Notional Amount of Derivative Instruments Added | (1,500,000)
Notional Amount of Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | 1,750,000
Derivative Asset, Notional Amount | 250,000
Not Designated as Hedging Instrument, Trading | TBA securities | Long position |
Derivative [Line Items] |
Derivative Asset, Notional Amount | 1,515,000
Notional Amount of Derivative Instruments Added | (8,065,000)
Notional Amount of Derivative Instruments Maturing, Settled, Terminated, or Paired-Off | 6,780,000
Derivative Asset, Notional Amount | $ 2,800,000

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