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Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of AFS and HTM Securities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 1,408,935 $ 1,668,316
Gross Unrealized Gains 36 45
Gross Unrealized Losses (141,545) (161,956)
Allowance for Credit Losses (22) (17)
Estimated Fair Value 1,267,404 1,506,388
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 939,953 1,017,693
HTM Allowance for credit losses 1,306 1,956
Total investment securities held-to-maturity 938,647 1,015,737
Gross Unrecognized Gains 0 5
Gross Unrecognized Losses (119,571) (116,116)
Total investment securities held-to-maturity 820,382 901,582
U.S. treasury bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 24,988 49,894
Gross Unrealized Gains 0 0
Gross Unrealized Losses (212) (1,993)
Allowance for Credit Losses 0 0
Estimated Fair Value 24,776 47,901
U.S. agency securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 600,277 729,090
Gross Unrealized Gains 0 0
Gross Unrealized Losses (41,742) (57,693)
Allowance for Credit Losses 0 0
Estimated Fair Value 558,535 671,397
Residential mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 719,815 823,992
Gross Unrealized Gains 36 45
Gross Unrealized Losses (94,535) (96,684)
Allowance for Credit Losses 0 0
Estimated Fair Value 625,316 727,353
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 605,904 670,043
Gross Unrecognized Gains 0 0
Gross Unrecognized Losses (85,941) (79,980)
Total investment securities held-to-maturity 519,963 590,063
Commercial mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 53,248 54,557
Gross Unrealized Gains 0 0
Gross Unrealized Losses (4,303) (4,993)
Allowance for Credit Losses 0 0
Estimated Fair Value 48,945 49,564
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 88,575 90,227
Gross Unrecognized Gains 0 0
Gross Unrecognized Losses (13,069) (12,867)
Total investment securities held-to-maturity 75,506 77,360
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 8,607 8,783
Gross Unrealized Gains 0 0
Gross Unrealized Losses (593) (293)
Allowance for Credit Losses 0 0
Estimated Fair Value 8,014 8,490
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 114,060 125,114
Gross Unrecognized Gains 0 5
Gross Unrecognized Losses (11,389) (8,540)
Total investment securities held-to-maturity 102,671 116,579
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 2,000 2,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses (160) (300)
Allowance for Credit Losses (22) (17)
Estimated Fair Value 1,818 1,683
Schedule of Held-to-Maturity Securities [Line Items]    
Amortized Cost 131,414 132,309
Gross Unrecognized Gains 0 0
Gross Unrecognized Losses (9,172) (14,729)
Total investment securities held-to-maturity $ 122,242 $ 117,580