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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Inventories [Abstract]
Raw materials	$ 38,510	$ 34,862
Work in process	6,044	6,448
Finished goods	26,055	25,757
Packaging and supplies	20,151	19,397
Total inventories	$ 90,760	$ 86,464

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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