v3.26.1
Investment Securities - Amortized, Gross Unrealized Gains and Losses, and Fair Value on Investment Securities, Available for Sale and Held to Maturity (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost $ 1,020,125   $ 647,505
Available for Sale, Gross Unrealized Gains 1,808   2,339
Available for Sale, Gross Unrealized Losses (50,496)   (42,322)
Available for Sale, Fair Value 971,437   607,522
Held-to-Maturity, Amortized Cost (661,839)   (674,107)
Held to Maturity, Gross Unrecognized Gains 13   325
Held to Maturity, Gross Unrecognized Losses (54,070)   (49,145)
Investment Securities, Held to Maturity, Fair Value 607,782   625,287
Investment Securities, Classified as Trading 0   0
Investment Securities, Holdings Greater than 10% 0   0
Investment Securities, Available for Sale, ACL 0   0
Investment Securities, Held to Maturity, Nonaccrual 0   0
Investment Securities, Held to Maturity, Past Due 0   0
Investment Securities, Held to Maturity, ACL 0   0
Investment Securities, Available for Sale, Accrued Interest Receivable 3,500   2,200
Investment Securities, Held to Maturity, Accrued Interest Receivable 2,100   2,200
Investment Securities, Available for Sale, Accrued Interest Receivable Reversed 0 $ 0  
Investment Securities, Held to Maturity, Accrued Interest Receivable Reversed 0 $ 0  
U.S. government and agency securities      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 13,471   13,276
Available for Sale, Gross Unrealized Gains 0   0
Available for Sale, Gross Unrealized Losses (1,648)   (1,574)
Available for Sale, Fair Value 11,823   11,702
Held-to-Maturity, Amortized Cost (151,363)   (151,319)
Held to Maturity, Gross Unrecognized Gains 0   0
Held to Maturity, Gross Unrecognized Losses (21,944)   (20,870)
Investment Securities, Held to Maturity, Fair Value 129,419   130,449
Municipal securities      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 72,534   59,355
Available for Sale, Gross Unrealized Gains 13   22
Available for Sale, Gross Unrealized Losses (8,157)   (7,954)
Available for Sale, Fair Value 64,390   51,423
Residential CMO and MBS(1)      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 522,334   297,010
Available for Sale, Gross Unrealized Gains 1,419   1,298
Available for Sale, Gross Unrealized Losses (27,575)   (23,040)
Available for Sale, Fair Value 496,178   275,268
Held-to-Maturity, Amortized Cost (207,387)   (217,707)
Held to Maturity, Gross Unrecognized Gains 0   303
Held to Maturity, Gross Unrecognized Losses (11,522)   (8,923)
Investment Securities, Held to Maturity, Fair Value 195,865   209,087
Commercial CMO and MBS(1)      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 376,378   260,953
Available for Sale, Gross Unrealized Gains 174   917
Available for Sale, Gross Unrealized Losses (12,839)   (9,706)
Available for Sale, Fair Value 363,713   252,164
Held-to-Maturity, Amortized Cost (303,089)   (305,081)
Held to Maturity, Gross Unrecognized Gains 13   22
Held to Maturity, Gross Unrecognized Losses (20,604)   (19,352)
Investment Securities, Held to Maturity, Fair Value 282,498   285,751
Corporate obligations      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 16,490   10,500
Available for Sale, Gross Unrealized Gains 142   72
Available for Sale, Gross Unrealized Losses (209)   (40)
Available for Sale, Fair Value 16,423   10,532
Other asset-backed securities      
Investment Securities Holdings by Classification, Type, and Maturity [Line Items]      
Available for Sale, Amortized Cost 18,918   6,411
Available for Sale, Gross Unrealized Gains 60   30
Available for Sale, Gross Unrealized Losses (68)   (8)
Available for Sale, Fair Value $ 18,910   $ 6,433