Annual report pursuant to Section 13 and 15(d)

Guarantor Subsidiaries - Additional Information (Detail)

v3.5.0.2
Guarantor Subsidiaries - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2016
Apr. 16, 2012
Senior Notes | 5.625% Senior Notes        
Debt Instrument [Line Items]        
Long-term debt       $ 300,000
5.625% Senior Notes Carrying Value $ 288,059   $ 288,059  
Debt instrument, interest rate   5.625% 5.625% 5.625%
Guarantors        
Debt Instrument [Line Items]        
Recast Operating Cash Flow Guarantor Statement $ 12,300 $ 1,800