v3.26.1
Investment in Securities - Schedule of Investment Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Marketable Securities [Line Items]    
Amortized Cost $ 825,036 $ 805,504
Gross Unrealized Gains 2,947 5,372
Gross Unrealized Losses (42,640) (40,104)
Fair Value 785,343 770,772
AFS, Less than 12 months, Estimated Fair Value 248,804 148,111
AFS, Less than 12 months, Unrealized Losses 3,084 1,733
AFS, 12 months or more, Estimated Fair Value 305,196 346,597
AFS, 12 months or more, Unrealized Losses 39,556 38,371
Debt Securities, Available-for-sale, Unrealized Loss Position 554,000 494,708
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 42,640 40,104
State and political subdivisions    
Marketable Securities [Line Items]    
Amortized Cost 236,398 247,716
Gross Unrealized Gains 1,906 3,228
Gross Unrealized Losses (11,590) (10,733)
Fair Value 226,714 240,211
AFS, Less than 12 months, Estimated Fair Value 14,601 0
AFS, Less than 12 months, Unrealized Losses 94 0
AFS, 12 months or more, Estimated Fair Value 111,530 139,379
AFS, 12 months or more, Unrealized Losses 11,496 10,733
Debt Securities, Available-for-sale, Unrealized Loss Position 126,131 139,379
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 11,590 10,733
Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises    
Marketable Securities [Line Items]    
Amortized Cost 535,493 503,599
Gross Unrealized Gains 1,041 2,144
Gross Unrealized Losses (28,550) (27,047)
Fair Value 507,984 478,696
AFS, Less than 12 months, Estimated Fair Value 234,203 148,111
AFS, Less than 12 months, Unrealized Losses 2,990 1,733
AFS, 12 months or more, Estimated Fair Value 143,021 155,353
AFS, 12 months or more, Unrealized Losses 25,560 25,314
Debt Securities, Available-for-sale, Unrealized Loss Position 377,224 303,464
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 28,550 27,047
Corporate bonds    
Marketable Securities [Line Items]    
Amortized Cost 30,831 30,895
Gross Unrealized Gains 0 0
Gross Unrealized Losses (2,180) (1,999)
Fair Value 28,651 28,896
AFS, Less than 12 months, Estimated Fair Value 0 0
AFS, Less than 12 months, Unrealized Losses 0 0
AFS, 12 months or more, Estimated Fair Value 28,651 28,896
AFS, 12 months or more, Unrealized Losses 2,180 1,999
Debt Securities, Available-for-sale, Unrealized Loss Position 28,651 28,896
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss 2,180 1,999
Asset backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises    
Marketable Securities [Line Items]    
Amortized Cost 22,314 23,294
Gross Unrealized Gains 0 0
Gross Unrealized Losses (320) (325)
Fair Value 21,994 22,969
AFS, Less than 12 months, Estimated Fair Value 0 0
AFS, Less than 12 months, Unrealized Losses 0 0
AFS, 12 months or more, Estimated Fair Value 21,994 22,969
AFS, 12 months or more, Unrealized Losses 320 325
Debt Securities, Available-for-sale, Unrealized Loss Position 21,994 22,969
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss $ 320 $ 325