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Loans and Leases and the Allowance for Credit Losses - Schedule of Loan and Lease Portfolio (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | $ 13,831,266 | $ 13,965,026
Commercial |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 5,815,537 | 5,777,486
Commercial | Commercial and Industrial |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 1,691,441 | 1,652,699
Commercial | Paycheck Protection Program |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 7,997 | 11,369
Commercial | Commercial Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 3,741,140 | 3,749,016
Commercial | Construction |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 315,571 | 304,463
Commercial | Lease Financing |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 59,388 | 59,939
Consumer |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 8,015,729 | 8,187,540
Consumer | Residential Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 4,595,586 | 4,684,171
Consumer | Home Equity |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 2,221,073 | 2,264,827
Consumer | Automobile |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 806,240 | 837,830
Consumer | Other |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | $ 392,830 | $ 400,712

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