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Investment Securities - Schedule of Income Earned on Available-for Sale Securities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Investment Income [Line Items] |  |  |  |
Income earned on securities, taxable | $ 26,444 | $ 32,587 | $ 53,877 | $ 65,816
Income earned on securities, non-taxable | 7,626 | 7,769 | 15,276 | 15,572
Total | 34,070 | 40,356 | 69,153 | 81,388
Available-for-sale |  |  |  |
Investment Income [Line Items] |  |  |  |
Income earned on securities, taxable | 19,032 | 25,127 | 39,092 | 50,889
Income earned on securities, non-taxable | 4,579 | 4,664 | 9,159 | 9,359
Held-to-maturity |  |  |  |
Investment Income [Line Items] |  |  |  |
Income earned on securities, taxable | 7,412 | 7,460 | 14,785 | 14,927
Income earned on securities, non-taxable | $ 3,047 | $ 3,105 | $ 6,117 | $ 6,213

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