Other, Net - Other Net in Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Nonoperating Income Expense [Abstract]
Foreign exchange (losses) gains	$ 106	$ 423	$ (229)	$ 991
Investment income	189	93	495	168
Realized and unrealized gains on investments	2,227	3,950	2,761	75
Net periodic pension benefit cost	236	(29)	477	(59)
Other, net	$ 2,758	$ 4,437	$ 3,504	$ 1,175

Amount of net periodic benefit cost (credit) for defined benefit plan.

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