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Loans (Aging Of Past Due Loans) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | $ 17,741 |  | $ 17,595 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 7,208,109 |  | 7,141,891 |
Loan balance |  | 7,208,109 |  | 7,141,891 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 21,611 | [1] | 22,085 | [2]
Impaired Financing Receivable, Recorded Investment, Nonaccrual loans which are current in regards to contractual P&I payments |  | 36,600 |  | 58,900 |
Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 7,168,757 |  | 7,102,211 |
Construction Real Estate Commercial [Domain] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 549 |  | 751 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 160,344 |  | 208,982 |
Construction Real Estate Commercial [Domain] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 159,795 |  | 208,231 |
Residential Real Estate Commercial [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  |  |  | 519 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 580,445 |  | 550,183 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 369 | [1] | 477 | [2]
Residential Real Estate Commercial [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 580,076 |  | 549,187 |
Residential Real Estate - Mortgage [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 5,872 |  | 7,630 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,133,676 |  | 1,075,446 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 5,645 | [1] | 5,157 | [2]
Residential Real Estate - Mortgage [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,122,159 |  | 1,062,659 |
Residential Real Estate - HELOC [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 1,008 |  | 832 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 167,940 |  | 167,151 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 682 | [1] | 587 | [2]
Residential Real Estate - HELOC [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 166,250 |  | 165,732 |
Residential Real Estate - Installment [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 19 |  | 57 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 4,262 |  | 4,091 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 1 | [1] | 4 | [2]
Residential Real Estate - Installment [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 4,242 |  | 4,030 |
PPP loans receivable [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 132 |  | 155 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 3,078 |  | 4,206 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  |  |  | 389 |
PPP loans receivable [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 2,946 |  | 3,662 |
Bank Overdrafts |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,596 |  | 1,489 |
Bank Overdrafts | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,596 |  | 1,489 |
Construction Real Estate Retail |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 724 |  | 1,035 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 114,362 |  | 116,433 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans | [2] |  |  | 523 |
Construction Real Estate Retail | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 113,638 |  | 114,875 |
Commercial Real Estate [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 1,330 |  | 737 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,799,440 |  | 1,794,054 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 1,805 | [1] | 4,738 | [2]
Commercial Real Estate [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 1,796,305 |  | 1,788,579 |
Finance Leases Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 24 |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 18,380 |  | 19,637 |
Finance Leases Portfolio Segment [Member] | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 18,356 |  | 19,637 |
PPP loans receivable [Member] |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 3,078 |  | 4,206 |
GFSC loans |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 13 |  | 48 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 65 |  | 274 |
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans |  | 5 |  |  |
GFSC loans | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 47 |  | 226 |
Check loans |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Accruing loans past due 30-89 days |  | 4 |  | 2 |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 2,044 |  | 2,150 |
Check loans | Financial Asset, Not Past Due |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | 2,040 |  | 2,148 |
Bank Overdrafts |  |  |  |  |
Financing Receivable, Past Due [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss |  | $ 1,596 |  | $ 1,489 |
[1] | 1) Includes an aggregate of $1.0 million of loans past due 90 days or more and accruing. The remaining loans were past due nonaccrual loans.(2) Includes an aggregate of $36.6 million of nonaccrual loans which were current in regards to contractual principal and interest payments
[2] | 1) Includes an aggregate of $1.3 million of loans past due 90 days or more and accruing. The remaining loans were past due nonaccrual loans.(2) Includes an aggregate of $58.9 million of nonaccrual loans which were current in regards to contractual principal and interest payments.

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