Pension and Other Postretirement Benefits - Schedule of Changes in Plan Assets (Detail) £ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2021 USD ($)
Foreign Defined Benefits Pension Plans [Member]
Change in plan assets:
Fair value of plan assets, Beginning balance	$ 71,614	£ 53,008
Fair value of plan assets, Ending balance	41,679	£ 34,475	$ 71,614
Defined Benefit Pension Plan [Member] | U.S. [Member]
Change in plan assets:
Fair value of plan assets, Beginning balance	214,937		210,880
Actual return on plan assets	(39,147)		18,514
Corporate contributions	1,214		403
Gross benefits paid	(15,630)		(14,860)
Fair value of plan assets, Ending balance	161,374		214,937
Defined Benefit Pension Plan [Member] | Foreign Defined Benefits Pension Plans [Member]
Change in plan assets:
Fair value of plan assets, Beginning balance	71,614		66,957
Actual return on plan assets	(21,069)		7,550
Foreign currency exchange rate changes	(7,003)		(779)
Corporate contributions	506		655
Gross benefits paid	(2,369)		(2,769)
Fair value of plan assets, Ending balance	41,679		71,614
Other Postretirement Benefit Plans [Member]
Change in plan assets:
Corporate contributions	479		600
Participant contributions	30		161
Gross benefits paid	$ (509)		$ (761)