v3.25.4
Basis of Presentation and Significant Accounting Policies (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Cash and Cash Equivalents and Restricted Cash [Abstract]      
Restricted cash $ 7,523,000 $ 24,446,000 $ 16,441,000
Variation margin 34,300,000 61,300,000  
Realized loss on RMBS, net [Abstract]      
Gain on RMBS, available-for-sale, measured at fair value through OCI [1] 0 105,000 0
Loss on RMBS, available-for-sale, measured at fair value through OCI [1] (3,074,000) (4,724,000) (29,944,000)
Gain on RMBS measured at fair value through earnings 0 59,000 0
Loss on RMBS measured at fair value through earnings (2,971,000) (2,035,000) (6,371,000)
Realized loss on RMBS, net (6,045,000) (6,595,000) $ (36,315,000)
MSRs [Member]      
Investments in MSRs [Abstract]      
Reserve for unrecoverable advances 0 0  
Derivatives [Member]      
Cash and Cash Equivalents and Restricted Cash [Abstract]      
Restricted cash 4,700,000 4,300,000  
Repurchase Agreements [Member]      
Cash and Cash Equivalents and Restricted Cash [Abstract]      
Restricted cash 2,900,000 20,100,000  
Receivables and Other Assets [Member] | RMBS [Member]      
Investments in RMBS [Abstract]      
Income receivable $ 5,000,000 $ 4,700,000  
[1] Reclassified from accumulated other comprehensive income into earnings.