XML 68 R57.htm IDEA: XBRL DOCUMENT v3.7.0.1
FAIR VALUE (Financial Assets and Liabilities Not Required to Be Measured at Fair Value) (Details) - USD ($)
$ in Thousands
May 31, 2017
Aug. 31, 2016
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities $ 1,066,762 $ 1,075,641
2023 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 330,000 330,000
2023 Notes | Level 2 | Carrying Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 330,000 330,000
2023 Notes | Level 2 | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] 333,630 332,010
2018 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 405,406 408,874
2018 Notes | Level 2 | Carrying Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 405,406 408,874
2018 Notes | Level 2 | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] 424,007 432,303
2017 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 300,372 302,601
2017 Notes | Level 2 | Carrying Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 300,372 302,601
2017 Notes | Level 2 | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] $ 301,230 $ 311,250
[1] The fair value of the notes is determined based on indicated market values.