Other Expense, Net - Details of Components of Other Income Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Other Income and Expenses [Abstract]
Foreign currency losses	$ (73)	$ (1,184)	$ (1,529)	$ (2,893)
Components of Net Periodic Benefit Cost Other than Service Cost	(404)	(165)	(1,372)	(598)
Losses on sales of receivables	(218)	(348)	(691)	(1,065)
Miscellaneous income	181	0	501	583
Other expense, net	$ (514)	$ (1,697)	$ (3,091)	$ (3,973)