Loans and Leases (Information on How Loans and Leases were Modified as a TDR) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	150	192	136
Post-Modification Recorded Investment | $	$ 21,977	$ 55,691	$ 88,771
Commercial Portfolio Segment [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	0	4
Commercial, Non-Mortgage | Commercial Portfolio Segment [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	8	11	15
Post-Modification Recorded Investment | $	$ 605	$ 1,070	$ 2,413
Commercial, Non-Mortgage | Commercial Portfolio Segment [Member] | Adjusted Interest Rates [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	0	1	2
Post-Modification Recorded Investment | $	$ 0	$ 96	$ 112
Commercial, Non-Mortgage | Commercial Portfolio Segment [Member] | Combination Rate and Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	9	7	11
Post-Modification Recorded Investment | $	$ 352	$ 607	$ 673
Commercial, Non-Mortgage | Commercial Portfolio Segment [Member] | Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	12	24	28
Post-Modification Recorded Investment | $	$ 14,160	$ 40,128	$ 65,186
Commercial Real Estate [Member] | Commercial Portfolio Segment [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	1	1	3
Post-Modification Recorded Investment | $	$ 183	$ 72	$ 8,356
Commercial Real Estate [Member] | Commercial Portfolio Segment [Member] | Combination Rate and Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	0	2	0
Post-Modification Recorded Investment | $	$ 0	$ 377	$ 0
Commercial Real Estate [Member] | Commercial Portfolio Segment [Member] | Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	1	3	3
Post-Modification Recorded Investment | $	$ 1,582	$ 306	$ 4,816
Residential Mortgage [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	1	3	7
Post-Modification Recorded Investment | $	$ 99	$ 485	$ 1,327
Residential Mortgage [Member] | Consumer Portfolio Segment [Member] | Combination Rate and Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	2	10	15
Post-Modification Recorded Investment | $	$ 401	$ 1,133	$ 2,241
Residential Mortgage [Member] | Consumer Portfolio Segment [Member] | Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	3	26	8
Post-Modification Recorded Investment | $	$ 280	$ 4,215	$ 1,001
Home Equity Loan [Member] | Consumer Portfolio Segment [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	85	3	6
Post-Modification Recorded Investment | $	$ 1,809	$ 188	$ 599
Home Equity Loan [Member] | Consumer Portfolio Segment [Member] | Combination Rate and Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	6	5	4
Post-Modification Recorded Investment | $	$ 1,025	$ 334	$ 140
Home Equity Loan [Member] | Consumer Portfolio Segment [Member] | Other Concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans and Leases	22	96	34
Post-Modification Recorded Investment | $	$ 1,481	$ 6,680	$ 1,907