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Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory Net
Raw materials	$ 41,015	$ 26,012
Work-in-process	14,190	10,512
Finished goods	107,431	56,998
Supplies	489us-gaap_InventorySuppliesNetOfReserves	552us-gaap_InventorySuppliesNetOfReserves
Total inventories	$ 163,125us-gaap_InventoryNet	$ 94,074us-gaap_InventoryNet

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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