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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Finance lease expense:
Amortization of right-of-use assets	$ 259	$ 350	$ 573	$ 671
Interest on lease liabilities	14	23	29	45
Operating lease expense	659	791	1,345	1,648
Total lease expense	932	1,164	1,947	2,364
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from finance leases	14	23	29	45
Operating cash outflows from operating leases	711	871	1,469	1,803
Financing cash outflows from finance leases	243	357	547	645
Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals	212	79	335	835
Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals	61	56	232	208
Operating leases:
Other non-current assets	$ 9,195	$ 10,772	$ 9,195	$ 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	Other non-current assets
Accrued liabilities	$ (2,128)	$ (2,371)	$ (2,128)	$ (2,371)
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses	Accrued expenses	Accrued expenses
Other non-current liabilities	$ (7,402)	$ (8,860)	$ (7,402)	$ (8,860)
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities	Other non-current liabilities	Other non-current liabilities
Total operating lease liabilities	$ (9,530)	$ (11,231)	$ (9,530)	$ (11,231)
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Property, plant and equipment gross	$ 7,098	$ 6,603	$ 7,098	$ 6,603
Accumulated depreciation	(4,071)	(4,644)	(4,071)	(4,644)
Property, plant and equipment, net	$ 3,027	$ 1,959	$ 3,027	$ 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	Other non-current assets
Current portion of long-term debt	$ (855)	$ (982)	$ (855)	$ (982)
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses	Accrued expenses	Accrued expenses
Long-term debt (less current portion)	$ (1,414)	$ (1,629)	$ (1,414)	$ (1,629)
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities	Other non-current liabilities	Other non-current liabilities
Total finance lease liabilities	$ (2,269)	$ (2,611)	$ (2,269)	$ (2,611)
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	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	3 years 4 months 24 days
Weighted-average remaining lease term - operating leases (years)	5 years	5 years	5 years	5 years
Weighted-average discount rate - finance leases	2.90%	2.80%	2.90%	2.80%
Weighted-average discount rate - operating leases	3.60%	3.60%	3.60%	3.60%