Loans and Loans Held for Sale - Restructured Loans by Type of Concession (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	40	40
Pre-Modification Outstanding Recorded Investment	$ 31,472	$ 25,295
Post-Modification Outstanding Recorded Investment	17,575	22,651
Bankruptcy
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	1,107	960
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Extend Maturity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	4,684	16,524
Modify Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Modify Payments
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 11,784	$ 5,167
Commercial real estate | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	1	1
Pre-Modification Outstanding Recorded Investment	$ 1,824	$ 5,292
Post-Modification Outstanding Recorded Investment	1,300	4,791
Commercial real estate | Bankruptcy | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial real estate | Other | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial real estate | Extend Maturity | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial real estate | Modify Rate | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial real estate | Modify Payments | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 1,300	$ 4,791
Commercial and industrial | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	3	3
Pre-Modification Outstanding Recorded Investment	$ 21,297	$ 15,217
Post-Modification Outstanding Recorded Investment	11,221	13,620
Commercial and industrial | Bankruptcy | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial and industrial | Other | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial and industrial | Extend Maturity | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	2,039	13,339
Commercial and industrial | Modify Rate | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial and industrial | Modify Payments | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 9,182	$ 281
Commercial construction | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	1	3
Pre-Modification Outstanding Recorded Investment	$ 5,279	$ 2,592
Post-Modification Outstanding Recorded Investment	2,087	2,330
Commercial construction | Bankruptcy | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial construction | Other | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial construction | Extend Maturity | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	2,087	2,330
Commercial construction | Modify Rate | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Commercial construction | Modify Payments | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Business banking | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	9	3
Pre-Modification Outstanding Recorded Investment	$ 1,792	$ 501
Post-Modification Outstanding Recorded Investment	1,721	260
Business banking | Bankruptcy | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	8	0
Business banking | Other | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Business banking | Extend Maturity | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	558	165
Business banking | Modify Rate | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Business banking | Modify Payments | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 1,155	$ 95
Consumer real estate | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	26	29
Pre-Modification Outstanding Recorded Investment	$ 1,280	$ 1,688
Post-Modification Outstanding Recorded Investment	1,246	1,646
Consumer real estate | Bankruptcy | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	1,099	956
Consumer real estate | Other | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Consumer real estate | Extend Maturity | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	690
Consumer real estate | Modify Rate | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Consumer real estate | Modify Payments | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 147	$ 0
Other consumer | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | loan	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 5
Post-Modification Outstanding Recorded Investment	0	4
Other consumer | Bankruptcy | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	4
Other consumer | Other | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Other consumer | Extend Maturity | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Other consumer | Modify Rate | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	0	0
Other consumer | Modify Payments | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0