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Investment Securities - Schedule of Investment in AFS and HTM Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 984,607 $ 1,055,146
Gross Unrealized Gains 58 269
Gross Unrealized Losses (80,482) (78,645)
Allowance for Credit Losses 0 0
Estimated Fair Value 904,183 976,770
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 815,332 855,810
Gross Unrealized Gains 5 8
Gross Unrealized Losses (84,343) (80,871)
Estimated Fair Value 730,994 774,947
Less: allowance for credit losses (454) (1,030)
Total investment securities held-to-maturity 814,878 854,780
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 331,363 355,249
Gross Unrealized Gains 0 0
Gross Unrealized Losses (17,591) (17,541)
Estimated Fair Value 313,772 337,708
Residential mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 574,550 620,540
Gross Unrealized Gains 58 152
Gross Unrealized Losses (59,860) (58,188)
Estimated Fair Value 514,748 562,504
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 516,797 544,402
Gross Unrealized Gains 0 0
Gross Unrealized Losses (62,731) (58,836)
Estimated Fair Value 454,066 485,566
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 68,359 68,931
Gross Unrealized Gains 0 117
Gross Unrealized Losses (2,625) (2,503)
Estimated Fair Value 65,734 66,545
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 84,682 85,760
Gross Unrealized Gains 0 0
Gross Unrealized Losses (10,409) (9,787)
Estimated Fair Value 74,273 75,973
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 8,335 8,426
Gross Unrealized Gains 0 0
Gross Unrealized Losses (392) (380)
Estimated Fair Value 7,943 8,046
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 106,753 106,875
Gross Unrealized Gains 0 0
Gross Unrealized Losses (7,284) (6,933)
Estimated Fair Value 99,469 99,942
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 2,000 2,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses (14) (33)
Estimated Fair Value 1,986 1,967
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 107,100 118,773
Gross Unrealized Gains 5 8
Gross Unrealized Losses (3,919) (5,315)
Estimated Fair Value $ 103,186 $ 113,466