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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, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	$ 14,075,980	$ 13,965,026
Commercial
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	6,125,409	5,777,486
Commercial | Commercial Mortgage
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	4,020,622	3,749,016
Commercial | Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	1,705,133	1,664,068
Commercial | Construction
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	308,898	304,463
Commercial | Lease Financing
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	90,756	59,939
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	7,950,571	8,187,540
Consumer | Residential Mortgage
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	4,628,283	4,684,171
Consumer | Home Equity
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	2,165,514	2,264,827
Consumer | Automobile
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	764,146	837,830
Consumer | Other
Accounts Notes And Loans Receivable [Line Items]
Loans and Leases	$ 392,628	$ 400,712

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-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

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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