Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Additional Information (Details)

v3.5.0.2
Fair Value Measurement - Additional Information (Details) - USD ($)
$ in Millions
May 31, 2016
Aug. 31, 2015
Senior Notes | 5.625% Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of long-term debt $ 296.0 $ 287.3