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Inventories (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Inventory Disclosure [Abstract]
Finished goods	$ 133,180	$ 127,254
Work-in-process	60,685	57,784
Raw material and supplies	36,064	31,344
Inventories	$ 229,929	$ 216,382

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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