Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of segments | segment					2
Revenues	$ 920,016		$ 842,861		$ 1,850,944	$ 1,671,154
Net sales related to the U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 234,118		$ 243,815	464,521	449,325
Net sales attributed to all foreign countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 685,898		$ 599,046	$ 1,386,423	$ 1,221,829
Net sales attributed to all foreign countries | Sales
Revenues from External Customers and Long-Lived Assets [Line Items]
Maximum percentage of total consolidated net sales attributed to any non-U.S. country					6.00%