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Allowance for Credit Losses and Credit Quality of Loans, Allowance for Credit Losses on Off-Balance Sheet Credit Exposures (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Allowance for Credit Losses and Credit Quality of Loans [Abstract] |  |
Allowance for credit losses | $ 115,300 | $ 114,400
Unfunded Commitment [Member] |  |
Allowance for Credit Losses and Credit Quality of Loans [Abstract] |  |
Allowance for credit losses | $ 4,700 | $ 5,100

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Balance Type: | credit
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