Inventories - Summary of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Inventory Net [Abstract]
Raw materials	$ 19,753	$ 2,508
Work in process	3,172
Finished goods	2,987	1,817
Obsolescence allowance	(536)	(427)
Inventory, net	$ 25,376	$ 3,898

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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