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Acquisitions and Dispositions (Details) (USD $)
In Thousands
Aug. 31, 2011
Acquisitions and dispositions [Abstract] 
Accounts receivable$ 16,758
Inventories21,574
Other current assets146
Property, plant and equipment8,229
Goodwill5,047
Intangible assets4,708
Other assets1,566
Liabilities(9,642)
Net assets acquired$ 48,386