Annual report pursuant to Section 13 and 15(d)

Earnings before Income Taxes, Including both Continuing and Discontinued Operations (Detail)

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Earnings before Income Taxes, Including both Continuing and Discontinued Operations (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2014
Income Tax Disclosure [Abstract]      
Income (Loss) from Continuing Operations before Income Taxes, Domestic $ (19,182) $ 14,593 $ 84,854
Income (Loss) from Continuing Operations before Income Taxes, Foreign (111,162) 10,798 89,172
Earnings from continuing operations before income tax expense $ (130,344) $ 25,391 $ 174,026