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Investment Securities - Schedule of Investment in AFS and HTM Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 1,008,764 $ 1,055,146
Gross Unrealized Gains 65 269
Gross Unrealized Losses (78,515) (78,645)
Allowance for Credit Losses 0 0
Estimated Fair Value 930,314 976,770
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 842,180 855,810
Gross Unrealized Gains 120 8
Gross Unrealized Losses (85,062) (80,871)
Estimated Fair Value 757,238 774,947
Less: allowance for credit losses (907) (1,030)
Total investment securities held-to-maturity 841,273 854,780
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 332,381 355,249
Gross Unrealized Gains 0 0
Gross Unrealized Losses (17,318) (17,541)
Estimated Fair Value 315,063 337,708
Residential mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 597,422 620,540
Gross Unrealized Gains 65 152
Gross Unrealized Losses (58,177) (58,188)
Estimated Fair Value 539,310 562,504
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 531,370 544,402
Gross Unrealized Gains 0 0
Gross Unrealized Losses (62,117) (58,836)
Estimated Fair Value 469,253 485,566
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 68,581 68,931
Gross Unrealized Gains 0 117
Gross Unrealized Losses (2,465) (2,503)
Estimated Fair Value 66,116 66,545
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 85,189 85,760
Gross Unrealized Gains 0 0
Gross Unrealized Losses (10,006) (9,787)
Estimated Fair Value 75,183 75,973
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 8,380 8,426
Gross Unrealized Gains 0 0
Gross Unrealized Losses (508) (380)
Estimated Fair Value 7,872 8,046
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 106,813 106,875
Gross Unrealized Gains 0 0
Gross Unrealized Losses (8,221) (6,933)
Estimated Fair Value 98,592 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 (47) (33)
Estimated Fair Value 1,953 1,967
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 118,808 118,773
Gross Unrealized Gains 120 8
Gross Unrealized Losses (4,718) (5,315)
Estimated Fair Value $ 114,210 $ 113,466