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Securities - Narrative (Details)
Sep. 30, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
Schedule of Held-to-maturity Securities [Line Items]    
Number of securities in an unrealized loss position | security 386  
Available for sale, past due $ 1,182,686,000 $ 1,237,433,000
Available-for-sale, nonaccrual 0 0
Held to maturity, past due 10,602,000  
Held-to-maturity securities, nonaccrual status 0 0
Held-to-maturity securities, accrued interest 5,400,000 5,300,000
Total Past Due    
Schedule of Held-to-maturity Securities [Line Items]    
Available for sale, past due 0 0
Held to maturity, past due $ 0 $ 0