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Basis of Presentation (Details) (USD $) In Thousands	Aug. 31, 2011	May 31, 2011
Basis of Presentation
Raw materials	$ 19,507	$ 16,900
Work in process	21,105	18,907
Finished goods	239,602	213,851
Inventories, net	$ 280,214	$ 249,658

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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