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Allowance for Credit Losses - Past-Due Status (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | $ 14,408,258 | $ 14,353,497
Loans and Leases Past Due 90 Days or More and Still Accruing Interest | 6,019 | 3,496
Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 45,124 | 62,245
Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 14,138 | 6,541
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 18,355 | 12,736
Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 77,617 | 81,522
Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 14,330,641 | 14,271,975
Commercial and Industrial |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 2,247,428 | 2,165,349
Loans and Leases Past Due 90 Days or More and Still Accruing Interest | 1,432 | 494
Commercial and Industrial | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 1,481 | 2,611
Commercial and Industrial | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 563 | 349
Commercial and Industrial | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 1,595 | 1,464
Commercial and Industrial | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 3,639 | 4,424
Commercial and Industrial | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 2,243,789 | 2,160,925
Commercial Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 4,463,992 | 4,340,243
Loans and Leases Past Due 90 Days or More and Still Accruing Interest |  | 300
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases |  | 196
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 153 | 300
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 153 | 496
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 4,463,839 | 4,339,747
Construction |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 918,326 | 900,292
Loans and Leases Past Due 90 Days or More and Still Accruing Interest | 536 |
Construction | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 434 | 25,191
Construction | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 1,179 |
Construction | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 536 |
Construction | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 2,149 | 25,191
Construction | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 916,177 | 875,101
Finance Leases Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 434,650 | 379,809
Finance Leases Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 434,650 | 379,809
Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases |  | 5,457,903
Consumer |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 1,023,969 | 1,109,901
Loans and Leases Past Due 90 Days or More and Still Accruing Interest | 2,734 | 2,702
Consumer | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 17,591 | 23,259
Consumer | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 3,946 | 3,897
Consumer | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 2,734 | 2,702
Consumer | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 24,271 | 29,858
Consumer | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 999,698 | 1,080,043
Real Estate Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 4,168,154 | 4,283,315
Real Estate Loan [Member] | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 4,168,154 | 4,283,315
Loans and Leases Past Due 90 Days or More and Still Accruing Interest | 1,317 |
Real Estate Loan [Member] | Residential mortgage | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 19,971 | 5,244
Real Estate Loan [Member] | Residential mortgage | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 7,478 | 1,475
Real Estate Loan [Member] | Residential mortgage | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 9,392 | 4,720
Real Estate Loan [Member] | Residential mortgage | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 36,841 | 11,439
Real Estate Loan [Member] | Residential mortgage | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 4,131,313 | 4,271,876
Home Equity Line |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases |  | 1,174,588
Home Equity Line | Home equity Line |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 1,151,739 | 1,174,588
Home Equity Line | Home equity Line | Financial Asset, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 5,647 | 5,940
Home Equity Line | Home equity Line | Financial Asset, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 972 | 624
Home Equity Line | Home equity Line | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 3,945 | 3,550
Home Equity Line | Home equity Line | Financial Asset, Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | 10,564 | 10,114
Home Equity Line | Home equity Line | Financial Asset, Not Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due |  |
Loans and leases | $ 1,141,175 | $ 1,164,474

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable and net investment in lease. + References No definition available. + Details
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- Definition Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-80 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
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