Leases - Additional Information (Details) - USD ($)	Sep. 30, 2022	Jan. 06, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Operating lease liabilities	$ 27,224,000		$ 16,523,000
Operating lease right-of-use assets	$ 25,854,000		$ 15,222,000
Operating lease, weighted average remaining lease term	11 years 9 months 3 days		9 years 1 month 28 days
Lessee, operating lease, discount rate	3.05%		3.41%
Operating lease, lease not yet commenced	$ 0
1st Constitution Bancorp
Business Acquisition [Line Items]
Operating lease liabilities		$ 13,000,000
Operating lease right-of-use assets		$ 13,000,000