Major Classes of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2011	May 31, 2011
Schedule of Inventory [Line Items]
Raw material and supplies	$ 164,107	$ 142,133
Finished goods	346,420	320,987
Total Inventory	$ 510,527	$ 463,120

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Carrying amount as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

+ References

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Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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