Loans (Aging Of Past Due Loans) (Details) - USD ($) $ in Thousands		Jun. 30, 2022		Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		$ 13,451		$ 13,465
Loan balance		6,958,685		6,871,122
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		16,738	[1]	21,070	[2]
Impaired Financing Receivable, Recorded Investment, Nonaccrual loans which are current in regards to contractual P&I payments		28,100		53,300
Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		6,928,496		6,836,587
Construction Real Estate Commercial [Domain]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		208,284		214,561
Loan balance		208,284		214,561
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		208,284		214,561
Residential Real Estate Commercial [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		17		283
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		545,160		533,802
Loan balance		545,160		533,802
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		365	[1]	438	[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		544,778		533,081
Residential Real Estate - Mortgage [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		6,859		6,170
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,018,924		1,033,658
Loan balance		1,018,924		1,033,658
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		5,689	[1]	5,933	[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		1,006,376		1,021,555
Residential Real Estate - HELOC [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		334		565
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		162,533		165,605
Loan balance		162,533		165,605
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		770	[1]	1,011	[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		161,429		164,029
Residential Real Estate - Installment [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		4		49
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		4,741		5,642
Loan balance		4,741		5,642
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		5	[1]	31	[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		4,732		5,562
PPP loans receivable [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		74		242
Loan balance		13,428		74,420
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans				793
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		13,354		73,385
Bank Overdrafts
Financing Receivable, Past Due [Line Items]
Loan balance		3,763		1,127
Bank Overdrafts | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		3,763		1,127
Construction Real Estate Retail
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		450		346
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		113,115		107,225
Loan balance		113,115		107,225
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans	[2]			660
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		112,665		106,219
Commercial Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		504		65
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		1,760,867		1,801,792
Loan balance		1,760,867		1,801,792
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		175	[1]	1,461	[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		1,760,188		1,800,266
Finance Leases Portfolio Segment [Member]
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		1,569		60
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		19,617		20,532
Loan balance		19,617		20,532
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans	[2]			526
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		18,048		19,946
PPP loans receivable [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		13,428		74,420
GFSC loans
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		62		153
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		748		1,793
Loan balance		748		1,793
Financing Receivable Recorded Investment Ninety Days Or More Past Due And Accruing Plus Past Due Nonaccrual Loans		22		52
GFSC loans | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		664		1,588
Check loans
Financing Receivable, Past Due [Line Items]
Accruing loans past due 30-89 days		6		10
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2,112		2,093
Loan balance		2,112		2,093
Check loans | Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		2,106		2,083
Bank Overdrafts
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss		$ 3,763		$ 1,127

[1] 1) Includes an aggregate of $507,000 of loans past due 90 days or more and accruing. The remaining loans were past due nonaccrual loans.(2) Includes an aggregate of $28.1 million of nonaccrual loans which were current in regards to contractual principal and interest payments

[2] 1) Includes an aggregate of $1.6 million of loans past due 90 days or more and accruing. The remaining loans were past due nonaccrual loans.(2) Includes an aggregate of $53.3 million of nonaccrual loans which were current in regards to contractual principal and interest payments.