Other, Net - Other Net in Condensed Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Other Nonoperating Income Expense [Abstract]
Foreign exchange gains (losses)	$ (1,507)	$ 106	$ (1,225)	$ (229)
Investment income	231	189	394	495
Realized and unrealized gains (losses) on investments	(4,485)	2,227	(6,972)	2,761
Net periodic pension benefit income	392	236	784	477
Other, net	$ (5,369)	$ 2,758	$ (7,019)	$ 3,504