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Investment Securities - Schedule of Investment in AFS and HTM Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 1,271,179 $ 1,408,935
Gross Unrealized Gains 52 36
Gross Unrealized Losses (100,742) (141,545)
Allowance for Credit Losses 0 (22)
Estimated Fair Value 1,170,489 1,267,404
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 898,084 939,953
Gross Unrealized Gains 7 0
Gross Unrealized Losses (98,955) (119,571)
Estimated Fair Value 799,136 820,382
Less: allowance for credit losses (1,229) (1,306)
Total investment securities held-to-maturity 896,855 938,647
U.S. treasury bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost   24,988
Gross Unrealized Gains   0
Gross Unrealized Losses   (212)
Allowance for Credit Losses   0
Estimated Fair Value   24,776
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 515,001 600,277
Gross Unrealized Gains 0 0
Gross Unrealized Losses (26,233) (41,742)
Allowance for Credit Losses 0 0
Estimated Fair Value 488,768 558,535
Residential mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 670,486 719,815
Gross Unrealized Gains 52 36
Gross Unrealized Losses (70,382) (94,535)
Allowance for Credit Losses 0 0
Estimated Fair Value 600,156 625,316
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 575,668 605,904
Gross Unrealized Gains 0 0
Gross Unrealized Losses (70,717) (85,941)
Estimated Fair Value 504,951 519,963
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 75,175 53,248
Gross Unrealized Gains 0 0
Gross Unrealized Losses (3,312) (4,303)
Allowance for Credit Losses 0 0
Estimated Fair Value 71,863 48,945
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 87,025 88,575
Gross Unrealized Gains 0 0
Gross Unrealized Losses (10,382) (13,069)
Estimated Fair Value 76,643 75,506
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 8,517 8,607
Gross Unrealized Gains 0 0
Gross Unrealized Losses (672) (593)
Allowance for Credit Losses 0 0
Estimated Fair Value 7,845 8,014
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 113,945 114,060
Gross Unrealized Gains 0 0
Gross Unrealized Losses (10,529) (11,389)
Estimated Fair Value 103,416 102,671
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 2,000 2,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses (143) (160)
Allowance for Credit Losses 0 (22)
Estimated Fair Value 1,857 1,818
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 121,446 131,414
Gross Unrealized Gains 7 0
Gross Unrealized Losses (7,327) (9,172)
Estimated Fair Value $ 114,126 $ 122,242