Business Segments - Geographic Information for Revenues, Based on Country of Origin, and Long-Lived Assets (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 757,035	$ 733,843	$ 720,753	$ 643,025	$ 783,887	$ 750,913	$ 740,294	$ 649,775	$ 2,854,656	$ 2,924,869	$ 2,972,901
Long-lived assets	967,992				864,227				967,992	864,227	795,198
Operating Segments | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									2,240,882	2,423,932	2,518,089
Long-lived assets	568,215				547,599				568,215	547,599	537,173
Operating Segments | PRC
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									263,540	166,289	126,674
Long-lived assets	219,289				157,858				219,289	157,858	105,237
Operating Segments | Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									350,234	334,648	328,138
Long-lived assets	$ 180,488				$ 158,770				$ 180,488	$ 158,770	$ 152,788