Retirement Benefits - Schedule of Pension Benefits Obligation (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Pension Plan [Abstract]
Accrued compensation and benefits	$ 650	$ 657
Other long-term liabilities	15,086	14,497
Components of pension benefits	$ 15,736	$ 15,154

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant