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Securities - Schedule of Amortized Cost of Debt Securities Held-to-Maturity, Aggregated by Credit Quality Indicator (Details)
$ in Thousands
Mar. 31, 2025
USD ($)
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity $ 268,979
Investment Grade  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 254,297
Non-Investment Grade/Non-rated  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 14,682
State and municipal debt obligations  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 189,349
State and municipal debt obligations | Investment Grade  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 188,522
State and municipal debt obligations | Non-Investment Grade/Non-rated  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 827
Corporate debt securities  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 60,520
Corporate debt securities | Investment Grade  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 46,665
Corporate debt securities | Non-Investment Grade/Non-rated  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 13,855
Non-agency commercial MBS  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 19,110
Non-agency commercial MBS | Investment Grade  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity 19,110
Non-agency commercial MBS | Non-Investment Grade/Non-rated  
Securities Financing Transaction [Line Items]  
Amortized cost of debt securities held-to-maturity $ 0