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Property, Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2012
Aug. 31, 2011
Property, Plant and Equipment [Line Items]    
Land and improvements $ 104,235 $ 104,471
Buildings 613,843 612,625
Leasehold improvements 235,902 188,231
Machinery and equipment 1,787,071 1,567,423
Furniture, fixtures and office equipment 109,767 99,287
Computer hardware and software 442,220 409,366
Transportation equipment 20,648 21,088
Construction in progress 43,735 2,325
Property, plant and equipment, gross 3,357,421 3,004,816
Less accumulated depreciation and amortization 1,578,266 1,363,481
Property, plant and equipment, net $ 1,779,155 $ 1,641,335