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
	Mar. 31, 2022	Mar. 31, 2021
Finance lease expense:
Amortization of right-of-use assets	$ 314	$ 321
Interest on lease liabilities	15	22
Operating lease expense	686	857
Total lease expense	1,015	1,200
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from finance leases	15	22
Operating cash outflows from operating leases	758	932
Financing cash outflows from finance leases	304	288
Right-of-use assets obtained in exchange for finance lease liabilities, net of terminations and disposals	124	756
Right-of-use assets obtained in exchange for operating lease liabilities, net of terminations and disposals	171	152
Operating leases:
Other non-current assets	$ 10,230	$ 10,772
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets	Other non-current assets
Accrued liabilities	$ (2,308)	$ (2,371)
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses
Other non-current liabilities	$ (8,318)	$ (8,860)
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Total operating lease liabilities	$ (10,626)	$ (11,231)
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Property, plant and equipment gross	$ 6,743	$ 6,603
Accumulated depreciation	(4,958)	(4,644)
Property, plant and equipment, net	$ 1,785	$ 1,959
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets	Other non-current assets
Current portion of long-term debt	$ (947)	$ (982)
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses
Long-term debt (less current portion)	$ (1,494)	$ (1,629)
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities	Other non-current liabilities
Total finance lease liabilities	$ (2,441)	$ (2,611)
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	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
Weighted-average remaining lease term - operating leases (years)	5 years	5 years
Weighted-average discount rate - finance leases	2.80%	2.80%
Weighted-average discount rate - operating leases	3.60%	3.60%