Leases - Components of lease cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 2,071	$ 2,261	$ 2,777
Finance lease cost [Abstract]
Amortization of right-of-use assets	147	68	65
Interest on lease liabilities	31	10	14
Total lease cost	$ 2,249	$ 2,339	$ 2,856