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Loans and Leases and the Allowance for Credit Losses - Schedule of Loan and Lease Portfolio (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | $ 13,965,026 | $ 13,646,420
Commercial |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 5,777,486 | 5,464,503
Commercial | Commercial and Industrial |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 1,652,699 | 1,389,066
Commercial | Paycheck Protection Program |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 11,369 | 19,579
Commercial | Commercial Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 3,749,016 | 3,725,542
Commercial | Construction |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 304,463 | 260,825
Commercial | Lease Financing |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 59,939 | 69,491
Consumer |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 8,187,540 | 8,181,917
Consumer | Residential Mortgage |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 4,684,171 | 4,653,072
Consumer | Home Equity |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 2,264,827 | 2,225,950
Consumer | Automobile |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | 837,830 | 870,396
Consumer | Other |  |
Accounts Notes And Loans Receivable [Line Items] |  |
Loans and Leases | $ 400,712 | $ 432,499

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481990/310-10-45-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 + Details
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