Allowance For Credit Losses (Financing Receivable, Past Due) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	$ 7,421		$ 11,396
Current Loans	3,656,545		3,604,703
Gross loans	3,663,966	$ 3,618,825	3,616,099
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	692		458
Current Loans	383,288		307,557
Gross loans	383,980		308,015
Commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	602		1,580
Current Loans	1,464,099		1,458,157
Gross loans	1,464,701		1,459,737
1-4 Family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	354
Current Loans	113,717
Gross loans	114,071
Hotels
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Current Loans	295,989
Gross loans	295,989
Multi-family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Current Loans	214,394
Gross loans	214,394
Non Residential Non-Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	148
Current Loans	628,666
Gross loans	628,814
Non Residential Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	100
Current Loans	211,333
Gross loans	211,433
Residential real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	5,152		7,484
Current Loans	1,616,113		1,632,912
Gross loans	1,621,265		1,640,396
Home equity
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	475		956
Current Loans	139,660		147,972
Gross loans	140,135		148,928
Consumer
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	121		188
Current Loans	50,420		54,075
Gross loans	50,541		54,263
DDA overdrafts
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	379		730
Current Loans	2,965		4,030
Gross loans	3,344		4,760
Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	6,207		9,155
Financial Asset, 30 to 59 Days Past Due | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	451		243
Financial Asset, 30 to 59 Days Past Due | Commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	454		1,514
Financial Asset, 30 to 59 Days Past Due | 1-4 Family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	354
Financial Asset, 30 to 59 Days Past Due | Hotels
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 30 to 59 Days Past Due | Multi-family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 30 to 59 Days Past Due | Non Residential Non-Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 30 to 59 Days Past Due | Non Residential Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	100
Financial Asset, 30 to 59 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	4,370		5,758
Financial Asset, 30 to 59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	451		840
Financial Asset, 30 to 59 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	106		156
Financial Asset, 30 to 59 Days Past Due | DDA overdrafts
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	375		644
Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	869		1,974
Financial Asset, 60 to 89 Days Past Due | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	20		31
Financial Asset, 60 to 89 Days Past Due | Commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	148		66
Financial Asset, 60 to 89 Days Past Due | 1-4 Family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 60 to 89 Days Past Due | Hotels
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 60 to 89 Days Past Due | Multi-family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 60 to 89 Days Past Due | Non Residential Non-Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	148
Financial Asset, 60 to 89 Days Past Due | Non Residential Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, 60 to 89 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	658		1,643
Financial Asset, 60 to 89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	24		116
Financial Asset, 60 to 89 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	15		32
Financial Asset, 60 to 89 Days Past Due | DDA overdrafts
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	4		86
Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	345		267
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	221		184
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due | 1-4 Family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Hotels
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Multi-family
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Non Residential Non-Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Non Residential Owner Occupied
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	124		83
Financial Asset, Equal to or Greater than 90 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due | DDA overdrafts
Financing Receivable, Past Due [Line Items]
Financing receivable, recorded investment, past due	$ 0		$ 0