Quarterly report pursuant to Section 13 or 15(d)

Schedule of Available-for-sale Securities Reconciliation (Details)

v3.24.2
Schedule of Available-for-sale Securities Reconciliation (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]            
Principal/Current Face $ 9,324,114   $ 9,832,353      
Unamortized Premium 190,375   217,937      
Accretable Purchase Discount (74,462)   (130,951)      
Amortized Cost 8,359,346   8,509,383      
Allowance for Credit Losses (3,340) $ (3,607) (3,943) $ (5,360) $ (5,922) $ (6,958)
Unrealized Gain 4,504   23,757      
Unrealized Loss (330,555)   (202,048)      
Available-for-sale securities, at fair value 8,029,955   8,327,149      
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]            
Debt Securities, Available-for-sale [Line Items]            
Principal/Current Face 8,790,827   9,262,456      
Unamortized Premium 186,410   213,738      
Accretable Purchase Discount (74,444)   (130,932)      
Amortized Cost 8,354,793   8,504,539      
Allowance for Credit Losses (2,893) (3,217) (3,619) (5,087) (5,274) (6,785)
Unrealized Gain 4,314   23,584      
Unrealized Loss (330,201)   (201,505)      
Available-for-sale securities, at fair value 8,026,013   8,322,999      
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises, Principal and Interest            
Debt Securities, Available-for-sale [Line Items]            
Principal/Current Face 8,242,827   8,421,733      
Unamortized Premium 155,876   155,171      
Accretable Purchase Discount (74,444)   (130,932)      
Amortized Cost 8,324,259   8,445,972      
Allowance for Credit Losses 0   0      
Unrealized Gain 3,898   22,677      
Unrealized Loss (325,434)   (196,748)      
Available-for-sale securities, at fair value 8,002,723   8,271,901      
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises, Interest-Only-Strip            
Debt Securities, Available-for-sale [Line Items]            
Principal/Current Face 548,000   840,723      
Unamortized Premium 30,534   58,567      
Accretable Purchase Discount 0   0      
Amortized Cost 30,534   58,567      
Allowance for Credit Losses (2,893)   (3,619)      
Unrealized Gain 416   907      
Unrealized Loss (4,767)   (4,757)      
Available-for-sale securities, at fair value 23,290   51,098      
Mortgage-backed Securities, Issued by Private Enterprises [Member]            
Debt Securities, Available-for-sale [Line Items]            
Principal/Current Face 533,287   569,897      
Unamortized Premium 3,965   4,199      
Accretable Purchase Discount (18)   (19)      
Amortized Cost 4,553   4,844      
Allowance for Credit Losses (447) $ (390) (324) $ (273) $ (648) $ (173)
Unrealized Gain 190   173      
Unrealized Loss (354)   (543)      
Available-for-sale securities, at fair value $ 3,942   $ 4,150