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Derivative Instruments and Hedging Activities - Schedule of Initial Margin (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Margin deposit assets, initial amount $ 66,640 $ 53,458
Restricted Cash    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Margin deposit assets, initial amount 31,620 53,458
Agency RMBS    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Margin deposit assets, initial amount $ 35,020 $ 0