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Securities - Additional Information (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |
Debt securities, available for sale portfolio to the held to maturity portfolio | $ 882,927,000 |  |
Debt and equity securities, unrealized loss | 99,675,000 |  |
Unrealized loss, operating, after tax | 74,307,000 |  |
Gain (loss) recognized for transfer of Available for sale securities | 0 |  |
Net Proceeds | 0 | $ 176,455,000 | $ 44,906,000
Allowance for credit losses - held to maturity securities | $ 32,000 | 32,000 |
Amortized cost of debt securities held to maturity rated A or higher by rating agencies (percent) | 99.99% |  |
Secure government, public and trust deposits |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for sale securities pledged as collateral | $ 824,417,000 | 607,681,000 |
Short-term borrowings |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Available for sale securities pledged as collateral | $ 18,184,000 | $ 21,493,000 |

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