Description of the Company and Summary of Significant Accounting Policies - Components of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Inventory, Net [Abstract]
Raw materials	$ 104,433	$ 87,133
Work in process	6,401	1,752
Finished goods	21,853	6,777
Total inventories	132,687	95,662
Inventory allowance	(2,340)	(1,759)
Inventories, net	$ 130,347	$ 93,903