v3.26.3
Investment Securities, AFS and HTM Securities Gross Unrealized Losses (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 476 32
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (226,886) $ (481)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 5,844,296 $ 193,126
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 42 47
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (18,271) $ (11,070)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 216,337 242,062
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (245,157) (11,551)
Debt Securities, Available-for-sale, Unrealized Loss Position 6,060,633 435,188
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (72,762) (3,448)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 809,289 116,143
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (584,620) (411,622)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 1,985,787 2,472,681
Total unrealized losses on held to maturity securities (657,382) (415,070)
Total fair value of unrealized losses on held to maturity securities 2,795,076 $ 2,588,824
US Treasury Securities    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (4)  
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 994  
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss 0  
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 0  
Total unrealized losses on held to maturity securities (4)  
Total fair value of unrealized losses on held to maturity securities $ 994  
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 8 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (441) $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 6,158 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 1 2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (16) $ (20)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 234 863
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (457) (20)
Debt Securities, Available-for-sale, Unrealized Loss Position 6,392 863
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (68,956) (2,978)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 755,193 89,826
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (203,154) (120,878)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 539,761 842,485
Total unrealized losses on held to maturity securities (272,110) (123,856)
Total fair value of unrealized losses on held to maturity securities 1,294,954 932,311
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (60,012) (43,990)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 224,916 258,827
Total unrealized losses on held to maturity securities (60,012) (43,990)
Total fair value of unrealized losses on held to maturity securities $ 224,916 $ 258,827
Federal Family Education Loan Program (FFELP) Guaranteed Loans [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 1 2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (34) $ (152)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 5,618 $ 33,239
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 12 12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (539) $ (798)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 50,269 55,565
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (573) (950)
Debt Securities, Available-for-sale, Unrealized Loss Position $ 55,887 $ 88,804
US Government-sponsored Enterprises Debt Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 9 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (9,641) $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 164,402 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 2 2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (7) $ (14)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 99 231
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (9,648) (14)
Debt Securities, Available-for-sale, Unrealized Loss Position $ 164,501 $ 231
Other Debt securities    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 3 2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (1,696) $ (2)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 4,054 $ 1,998
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ 0 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 0 0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (1,696) (2)
Debt Securities, Available-for-sale, Unrealized Loss Position $ 4,054 $ 1,998
US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 62 12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (4,607) $ (95)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 84,740 $ 14,155
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 8 12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (7,372) $ (5,398)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 44,429 56,215
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (11,979) (5,493)
Debt Securities, Available-for-sale, Unrealized Loss Position 129,169 70,370
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,262) 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 20,955 30
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (171,085) (127,333)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 577,745 676,915
Total unrealized losses on held to maturity securities (172,347) (127,333)
Total fair value of unrealized losses on held to maturity securities $ 598,700 $ 676,945
US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 9 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (20,066) $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 331,626 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 1 1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (1,898) $ (1,001)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 15,773 16,958
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (21,964) (1,001)
Debt Securities, Available-for-sale, Unrealized Loss Position 347,399 16,958
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,985) (470)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 24,674 26,287
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (141,035) (112,534)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 585,230 624,079
Total unrealized losses on held to maturity securities (143,020) (113,004)
Total fair value of unrealized losses on held to maturity securities $ 609,904 $ 650,366
Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 384 16
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ (190,401) $ (232)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 5,247,698 $ 143,734
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 3 3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (203) $ (21)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 2,669 2,674
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (190,604) (253)
Debt Securities, Available-for-sale, Unrealized Loss Position 5,250,367 146,408
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (555) 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 7,473 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (3,992) (2,321)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 24,161 30,237
Total unrealized losses on held to maturity securities (4,547) (2,321)
Total fair value of unrealized losses on held to maturity securities $ 31,634 $ 30,237
Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member]    
Schedule of Available-for-sale and Held-to-maturity Securities [Line Items]    
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security 0 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss $ 0 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months $ 0 $ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security 15 15
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (8,236) $ (3,818)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer 102,864 109,556
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss (8,236) (3,818)
Debt Securities, Available-for-sale, Unrealized Loss Position 102,864 109,556
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 0 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value 0 0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (5,342) (4,566)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 33,974 40,138
Total unrealized losses on held to maturity securities (5,342) (4,566)
Total fair value of unrealized losses on held to maturity securities $ 33,974 $ 40,138
Held to maturity, number of securities, less than 12 months    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 667 84
Held to maturity, number of securities, less than 12 months | US Treasury Securities    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 1  
Held to maturity, number of securities, less than 12 months | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 636 81
Held to maturity, number of securities, less than 12 months | Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 0 0
Held to maturity, number of securities, less than 12 months | US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 21 1
Held to maturity, number of securities, less than 12 months | US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 2 2
Held to maturity, number of securities, less than 12 months | Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 7 0
Held to maturity, number of securities, less than 12 months | Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 0 0
Held to maturity, number of securities, 12 months or more    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 659 799
Held to maturity, number of securities, 12 months or more | US Treasury Securities    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 0  
Held to maturity, number of securities, 12 months or more | US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 408 543
Held to maturity, number of securities, 12 months or more | Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 18 18
Held to maturity, number of securities, 12 months or more | US Government Sponsored-Enterprise Insured Loans | Residential Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 99 102
Held to maturity, number of securities, 12 months or more | US Government Sponsored-Enterprise Insured Loans | Commercial Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 43 43
Held to maturity, number of securities, 12 months or more | Government National Mortgage Association (GNMA) [Member] | Residential Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 78 80
Held to maturity, number of securities, 12 months or more | Government National Mortgage Association (GNMA) [Member] | Commercial Mortgage-Backed Securities [Member]    
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position [Abstract]    
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | security 13 13