Premises And Equipment And Operating Leases (Components Of Premises And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 89,604	$ 86,852
Accumulated depreciation and amortization	(49,587)	(45,585)
Total	40,017	41,267
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	9,038	9,038
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	29,545	28,201
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	14,629	14,175
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	34,065	32,026
Construction In Process [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 2,327	$ 3,412