Loans and Allowance for Credit Losses for Loans - Pre- and Post-Modification Amortized Cost of Loans by Loan Class Modified as TDRs and Loans Modified as TDRs that Subsequently Defaulted (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	100	61
Pre-Modification Outstanding Recorded Investment	$ 114,152	$ 73,222
Post-Modification Outstanding Recorded Investment	$ 106,234	$ 66,726
Number of days loans placed on non-accrual status	90 days	90 days
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	3	28
Recorded investment, troubled debt restructurings subsequently defaulted	$ 27,860	$ 23,494
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	70	42
Pre-Modification Outstanding Recorded Investment	$ 52,790	$ 46,090
Post-Modification Outstanding Recorded Investment	$ 48,764	$ 42,679
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	0	27
Recorded investment, troubled debt restructurings subsequently defaulted	$ 0	$ 23,247
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	15	6
Pre-Modification Outstanding Recorded Investment	$ 51,529	$ 24,683
Post-Modification Outstanding Recorded Investment	$ 47,731	$ 21,654
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	3	0
Recorded investment, troubled debt restructurings subsequently defaulted	$ 27,860	$ 0
Commercial real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	12	6
Pre-Modification Outstanding Recorded Investment	$ 29,480	$ 24,683
Post-Modification Outstanding Recorded Investment	$ 29,313	$ 21,654
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	1	0
Recorded investment, troubled debt restructurings subsequently defaulted	$ 10,261	$ 0
Commercial real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	3	0
Pre-Modification Outstanding Recorded Investment	$ 22,049	$ 0
Post-Modification Outstanding Recorded Investment	$ 18,418	$ 0
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	2	0
Recorded investment, troubled debt restructurings subsequently defaulted	$ 17,599	$ 0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	14	12
Pre-Modification Outstanding Recorded Investment	$ 9,663	$ 2,377
Post-Modification Outstanding Recorded Investment	$ 9,578	$ 2,323
Number of contracts, troubled debt restructurings subsequently defaulted (in contract) | contract	0	1
Recorded investment, troubled debt restructurings subsequently defaulted	$ 0	$ 247
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of contracts, troubled debt restructurings (in contract) | contract	1	1
Pre-Modification Outstanding Recorded Investment	$ 170	$ 72
Post-Modification Outstanding Recorded Investment	$ 161	$ 70