v3.26.1
AFS Securities - AFS Securities with Gross Unrealized Losses (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months $ 1,362 $ 1,032
Fair Value, Less Than Twelve Months 121,169 22,488
Gross Unrealized Losses, Twelve Months or More 9,746 10,060
Fair Value, Twelve Months or More 263,768 372,959
Total Unrealized Losses $ 11,108 $ 11,092
Number of Securities in an unrealized loss position, Less Than Twelve Months, Fair Value | security 36 38
Number of Securities in an unrealized loss position, Twelve Months or More, Fair Value | security 140 138
Number of Securities in an unrealized loss position, Total Unrealized Losses | security 176 176
Debt securities, available-for-sale, allowance for credit losses $ 0  
U.S. Treasury    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 0 $ 0
Fair Value, Less Than Twelve Months 0 0
Gross Unrealized Losses, Twelve Months or More 872 2,793
Fair Value, Twelve Months or More 99,160 197,534
Total Unrealized Losses 872 2,793
States and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 130 993
Fair Value, Less Than Twelve Months 10,989 13,446
Gross Unrealized Losses, Twelve Months or More 2,842 1,704
Fair Value, Twelve Months or More 27,884 24,823
Total Unrealized Losses 2,972 2,697
Auction rate money market preferred    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 0 0
Fair Value, Less Than Twelve Months 0 0
Gross Unrealized Losses, Twelve Months or More 781 787
Fair Value, Twelve Months or More 2,419 2,413
Total Unrealized Losses 781 787
Agency mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 0 0
Fair Value, Less Than Twelve Months 0 0
Gross Unrealized Losses, Twelve Months or More 1,216 1,121
Fair Value, Twelve Months or More 19,527 22,252
Total Unrealized Losses 1,216 1,121
Agency collateralized mortgage obligations    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 0 0
Fair Value, Less Than Twelve Months 0 0
Gross Unrealized Losses, Twelve Months or More 1,740 1,518
Fair Value, Twelve Months or More 25,801 28,794
Total Unrealized Losses 1,740 1,518
Agency commercial mortgage-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 1,232 39
Fair Value, Less Than Twelve Months 110,180 9,042
Gross Unrealized Losses, Twelve Months or More 1,956 1,608
Fair Value, Twelve Months or More 82,866 91,222
Total Unrealized Losses 3,188 1,647
Corporate    
Debt Securities, Available-for-sale [Line Items]    
Gross Unrealized Losses, Less Than Twelve Months 0 0
Fair Value, Less Than Twelve Months 0 0
Gross Unrealized Losses, Twelve Months or More 339 529
Fair Value, Twelve Months or More 6,111 5,921
Total Unrealized Losses $ 339 $ 529