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	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) contract	Sep. 30, 2020 USD ($) contract	Sep. 30, 2021 USD ($) contract	Sep. 30, 2020 USD ($) contract
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	13	1	25	39
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 184	$ 6	$ 853	$ 629
Consumer
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	13	1	25	39
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 184	$ 6	$ 853	$ 629
Consumer | Other
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	5	0	12	6
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 27	$ 0	$ 112	$ 38
Consumer | Residential Mortgage
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract			1	0
Recorded Investment (as of period ended), TDRs that Defaulted | $			$ 528	$ 0
Consumer | Automobile
Financing Receivable Modifications [Line Items]
Number of Contracts, TDRs that Defaulted | contract	8	1	12	33
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 157	$ 6	$ 213	$ 591