Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) segment	Mar. 31, 2017 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of segments | segment	2
Revenues	$ 930,928	$ 828,293
US
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	230,200	227,600
Foreign Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 700,700	$ 600,700
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	6.30%