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Securities - Fair Value of Debt Security, Available-for-sale and Held-to-maturity (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale $ 604,398 $ 540,190
Gross unrealized gains, available for sale 123 62
Gross unrealized losses, available for sale (60,498) (61,135)
Fair value, available for sale 544,023 479,117
Amortized cost, held to maturity 388,517 394,534
Gross unrealized gains, held to maturity 89 41
Gross unrealized losses, held to maturity (40,609) (55,527)
Fair value, held to maturity 347,997 339,048
U.S. Government and Federal Agency [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, held to maturity 2,983 2,978
Gross unrealized gains, held to maturity 0 0
Gross unrealized losses, held to maturity (182) (279)
Fair value, held to maturity 2,801 2,699
U.S. Treasury Notes and Bonds [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale 94,284 89,875
Gross unrealized gains, available for sale 25 0
Gross unrealized losses, available for sale (5,923) (9,373)
Fair value, available for sale 88,386 80,502
State and Municipal [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale 262,393 258,815
Gross unrealized gains, available for sale 0 0
Gross unrealized losses, available for sale (38,236) (30,579)
Fair value, available for sale 224,157 228,236
Amortized cost, held to maturity 197,497 196,510
Gross unrealized gains, held to maturity 43 5
Gross unrealized losses, held to maturity (24,081) (31,477)
Fair value, held to maturity 173,459 165,038
Mortgage-backed [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale 238,535 181,863
Gross unrealized gains, available for sale 98 62
Gross unrealized losses, available for sale (16,172) (20,955)
Fair value, available for sale 222,461 160,970
Amortized cost, held to maturity 167,458 174,323
Gross unrealized gains, held to maturity 14 7
Gross unrealized losses, held to maturity (14,849) (21,963)
Fair value, held to maturity 152,623 152,367
Corporate [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale 250 250
Gross unrealized gains, available for sale 0 0
Gross unrealized losses, available for sale (33) (38)
Fair value, available for sale 217 212
Amortized cost, held to maturity 20,532 20,495
Gross unrealized gains, held to maturity 32 29
Gross unrealized losses, held to maturity (1,497) (1,803)
Fair value, held to maturity 19,067 18,721
Asset-backed Securities [Member]    
Debt and Equity Securities, FV-NI [Line Items]    
Amortized cost, available for sale 8,936 9,387
Gross unrealized gains, available for sale 0 0
Gross unrealized losses, available for sale (134) (190)
Fair value, available for sale 8,802 9,197
Amortized cost, held to maturity 47 228
Gross unrealized gains, held to maturity 0 0
Gross unrealized losses, held to maturity 0 (5)
Fair value, held to maturity $ 47 $ 223