Other Income (Expense) - Other Income (Expense), Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Nonoperating Income Expense [Abstract]
Foreign currency transaction gains (losses)	$ (1,606)	$ (176)
Gains (losses) on derivative instruments not designated as hedges	(246)	(33)
Other miscellaneous income (expense)	(884)	(361)
Other income (expense)	(4,793)	610
Other Income (Expense), Net [Member]
Other Nonoperating Income Expense [Abstract]
Net investment gains (losses) on investments held in rabbi trust	$ (2,057)	$ 1,180