Commitments and Contingent Liabilities - Summary of Quantitative Information for the Company's Leases (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Operating lease cost (cost resulting from lease payments)	$ 981
Operating lease - operating cash flows (fixed payments)	787
Operating lease right-of-use assets (other assets)	9,712
Operating lease liabilities (other liabilities)	$ 11,348
Weighted average lease term - operating leases	4 years 6 months
Weighted average discount rate - operating leases	4.55%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Interest Receivable and Other Assets