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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Inventory, Net [Abstract]
Finished goods	$ 94,675	$ 92,337
Raw materials	71,596	63,244
Work in process	16,975	13,139
Inventory, Net	$ 183,246	$ 168,720

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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