Loans and Leases and the Allowance for Credit Losses - Schedule of TDRs that Defaulted during Period, within Twelve Months of Modification Date (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) contract	Dec. 31, 2019 USD ($) contract
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	54	64
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 831	$ 1,060
Commercial
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	1
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 27
Commercial | Commercial and Industrial
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	1
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 27
Consumer
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	53	64
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 804	$ 1,060
Consumer | Other
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	10	22
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 81	$ 129
Consumer | Residential Mortgage
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract		1
Recorded Investment (as of period ended), TDRs that Defaulted | $		$ 132
Consumer | Home Equity
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract		1
Recorded Investment (as of period ended), TDRs that Defaulted | $		$ 192
Consumer | Automobile
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	43	40
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 723	$ 607