Inventories, Net - Components of Inventory (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Inventory Net [Abstract]
Raw material	$ 74,399	$ 53,528
Work in process	2,566	1,446
Finished goods	3,387	2,522
Inventories	80,352	57,496
Reserve	(1,754)	(1,510)
Inventories, net	$ 78,598	$ 55,986