Loans And Allowance For Credit Losses (Summary of Activity in the Allowance For Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for Credit Loss [Line Items]
Balance, Asset	$ 150,136	$ 150,044	$ 220,834
Provision for credit losses on loans	19,155	(52,223)
Loans charged off	29,242	35,627
Recoveries on Loans	10,179	17,060
Net loan charge-offs	19,063	18,567
Balance, Liability	33,120	24,204	38,307
Provision for credit losses on unfunded lending commitments	8,916	(14,103)
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS	183,256	174,248
Commercial Portfolio Segment [Member]
Allowance for Credit Loss [Line Items]
Balance, Asset	103,293	97,776	121,549
Provision for credit losses on loans	6,550	(28,594)
Loans charged off	1,480	968
Recoveries on Loans	447	5,789
Net loan charge-offs	1,033	(4,821)
Balance, Liability	31,743	23,271	37,259
Provision for credit losses on unfunded lending commitments	8,472	(13,988)
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS	135,036	121,047
Personal Banking Portfolio Segment [Member]
Allowance for Credit Loss [Line Items]
Balance, Asset	46,843	52,268	99,285
Provision for credit losses on loans	12,605	(23,629)
Loans charged off	27,762	34,659
Recoveries on Loans	9,732	11,271
Net loan charge-offs	18,030	23,388
Balance, Liability	1,377	933	$ 1,048
Provision for credit losses on unfunded lending commitments	444	(115)
ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LIABILITY FOR UNFUNDED LENDING COMMITMENTS	$ 48,220	$ 53,201