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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Inventories
Raw materials	$ 66,508	$ 77,364	$ 71,908
In-process products	19,225	21,357	21,454
Finished products	86,288	81,408	78,780
Total inventories	$ 172,021	$ 180,129	$ 172,142

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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