XML 88 R70.htm IDEA: XBRL DOCUMENT v3.25.0.1
Investment Securities Available For Sale, at Fair Value - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]      
Accrued interest $ 22,400,000 $ 9,800,000  
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other assets Other assets  
Unrealized (losses) gains on investments $ (88,800,000) $ 36,300,000 $ (22,600,000)
Realized loss on write-downs $ 21,000 $ (12,600,000) 18,344,000
Contractual maturities (up to) 39 years    
Weighted average life of available for sale securities portfolio 7 years 4 months 24 days 6 years 10 months 24 days  
Amortized cost $ 0 $ 35,000  
Allowance for credit loss   0  
CECL credit losses 0 0 0
Non-Agency RMBS      
Debt Securities, Available-for-sale [Line Items]      
Realized loss on write-downs 21,000 (11,172,000) 374,000
Amortized cost 0 35,000  
Non Agency RMBS Held In Securitization Trust | Non-Agency RMBS      
Debt Securities, Available-for-sale [Line Items]      
Realized loss on write-downs $ (1,200,000) $ (1,700,000) $ 0