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Securities & Allowance for Securities Credit Losses - Schedule of Debt Securities, Held-to-Maturity, Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total $ 283,913 $ 300,653
U.S. government and federal agencies    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 115,454 122,452
Mortgage Backed Securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 1,155 1,168
Corporate bonds    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 50,815 57,470
State and municipal securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 116,489 119,563
AAA / AA / A    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 251,045 261,229
AAA / AA / A | U.S. government and federal agencies    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 115,454 122,452
AAA / AA / A | Mortgage Backed Securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 1,155 1,168
AAA / AA / A | Corporate bonds    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 17,947 18,046
AAA / AA / A | State and municipal securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 116,489 119,563
BBB / BB / B    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 32,868 39,424
BBB / BB / B | U.S. government and federal agencies    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 0 0
BBB / BB / B | Mortgage Backed Securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 0 0
BBB / BB / B | Corporate bonds    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total 32,868 39,424
BBB / BB / B | State and municipal securities    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Total $ 0 $ 0