Loans and Leases and the Allowance for Credit Losses - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Notes And Loans Receivable [Line Items]
Net gains related to sales of residential mortgage loans	$ 300	$ 200	$ 7,100
Accrued interest receivable	66,525	61,002
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure	4,900
Revolving loans, converted to term loan during the period	$ 13,200	6,200
Number of days non-accrual loans are not past due	30 days
Classified
Accounts Notes And Loans Receivable [Line Items]
Number of months up to which residential and home equity loans may be considered classified, even if they are current as to principal and interest	6 months
Classified | Consumer
Accounts Notes And Loans Receivable [Line Items]
Number of days past due for loans and leases in classified credit quality indicator	90 days
Pass | Residential Mortgage
Accounts Notes And Loans Receivable [Line Items]
Number of days past due for loans and leases in classified credit quality indicator	90 days
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Pass | Home Equity
Accounts Notes And Loans Receivable [Line Items]
Number of days past due for loans and leases in classified credit quality indicator	90 days
Maximum current loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Maximum current combined loan-to-value ratio for residential mortgage and home equity loans to be considered as pass (as a percent)	60.00%
Accrued Interest Receivable
Accounts Notes And Loans Receivable [Line Items]
Accrued interest receivable	$ 48,400	$ 40,100