Leases - Schedule of Lease Expense, Cash Flow, Operating and Finance Lease Assets and Liabilities, Average Lease Term and Average Discount Rate (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Finance lease expense:
Amortization of right-of-use assets	$ 258	$ 335	$ 831	$ 1,006
Interest on lease liabilities	15	20	44	65
Operating lease expense	634	727	1,979	2,375
Total lease expense	907	1,082	2,854	3,446
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from finance leases	15	20	44	65
Operating cash outflows from operating leases	641	884	2,110	2,687
Financing cash outflows from finance leases	258	367	805	1,012
Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals	519	50	854	885
Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals	45	$ 76	277	$ 284
Operating leases:
Other non-current assets	$ 8,251		$ 8,251		$ 10,772
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets		Other non-current assets		Other non-current assets
Accrued liabilities	$ (2,010)		$ (2,010)		$ (2,371)
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses		Accrued expenses		Accrued expenses
Other non-current liabilities	$ (6,561)		$ (6,561)		$ (8,860)
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities		Other non-current liabilities		Other non-current liabilities
Total operating lease liabilities	$ (8,571)		$ (8,571)		$ (11,231)
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Property, plant and equipment gross	$ 7,449		$ 7,449		$ 6,603
Accumulated depreciation	(5,475)		(5,475)		(4,644)
Property, plant and equipment, net	$ 1,974		$ 1,974		$ 1,959
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets		Other non-current assets		Other non-current assets
Current portion of long-term debt	$ (916)		$ (916)		$ (982)
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses		Accrued expenses		Accrued expenses
Long-term debt (less current portion)	$ (1,485)		$ (1,485)		$ (1,629)
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities		Other non-current liabilities		Other non-current liabilities
Total finance lease liabilities	$ (2,401)		$ (2,401)		$ (2,611)
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent		us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Weighted-average remaining lease term - finance leases (years)	3 years 4 months 24 days		3 years 4 months 24 days		3 years 4 months 24 days
Weighted-average remaining lease term - operating leases (years)	5 years		5 years		5 years
Weighted-average discount rate - finance leases	2.80%		2.80%		2.80%
Weighted-average discount rate - operating leases	3.60%		3.60%		3.60%