Loans and Leases and the Allowance for Credit Losses - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Accrued interest receivable	$ 67,554	$ 66,525
Revolving loans, converted to term loan during the period	$ 7,200	13,200
Number of days non-accrual loans are not past due	30 days
Consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure	$ 4,100
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%
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
Accrued Interest Receivable
Accounts Notes And Loans Receivable [Line Items]
Accrued interest receivable	$ 49,600	$ 48,400
Consumer | Classified
Accounts Notes And Loans Receivable [Line Items]
Number of days past due for loans and leases in classified credit quality indicator	90 days