Loans and Allowance for Credit Losses - Summary of Restructured Loans (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	$ 1,878
Commercial real estate | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	0
Commercial and industrial | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	0
Commercial construction | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	0
Business banking | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	0
Consumer real estate | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	1,878
Other consumer | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans	$ 0
Total TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		$ 11,785
Total TDRs | Commercial real estate | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		0
Total TDRs | Commercial and industrial | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		626
Total TDRs | Commercial construction | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		1,655
Total TDRs | Business banking | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		1,525
Total TDRs | Consumer real estate | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		7,966
Total TDRs | Other consumer | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		13
Accruing TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		8,891
Accruing TDRs | Commercial real estate | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		0
Accruing TDRs | Commercial and industrial | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		626
Accruing TDRs | Commercial construction | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		1,655
Accruing TDRs | Business banking | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		438
Accruing TDRs | Consumer real estate | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		6,168
Accruing TDRs | Other consumer | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		4
Nonaccruing TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		2,894
Nonaccruing TDRs | Commercial real estate | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		0
Nonaccruing TDRs | Commercial and industrial | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		0
Nonaccruing TDRs | Commercial construction | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		0
Nonaccruing TDRs | Business banking | Commercial Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		1,087
Nonaccruing TDRs | Consumer real estate | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		1,798
Nonaccruing TDRs | Other consumer | Consumer Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Restructured loans		$ 9