Operating Leases - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) ft²	Sep. 30, 2022 USD ($)	Dec. 31, 2022
Disclosure of Operating Leases [Line Items]
Finance Lease Obligations | $	$ 0		$ 0
Lessee, Operating Lease, Option to Extend			5
Before agreement of company leased spaces | ft²			7,800
After agreement of company leased spaces | ft²			10,700
Weighted average remaining lease term	7 years 7 months 6 days		7 years 7 months 6 days		8 years 3 months 18 days
Weighted average discount rate	4.51%		4.51%		4.51%
Rent expense | $	$ 108	$ 108	$ 323	$ 324
Maximum [Member]
Disclosure of Operating Leases [Line Items]
Lessee, Operating Lease, Option to Terminate			7.6
Minimum [Member]
Disclosure of Operating Leases [Line Items]
Lessee, Operating Lease, Option to Terminate			6