Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Fixed operating lease cost	$ 495	$ 518	$ 1,473	$ 1,561
Total lease expense	495	518	1,473	1,561
Operating cash outflows from operating leases	345	345	1,032	1,037
Sublease income	$ 0	$ 49	$ 0	$ 97
Weighted-average remaining lease term-operating leases (in years)	2 years 6 months	3 years 4 months 24 days	2 years 6 months	3 years 4 months 24 days
Weighted-average discount rate-operating leases	11.50%	11.50%	11.50%	11.50%