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FAIR VALUE FAIR VALUE (Financial Assets and Liabilities Not Required to Be Measured at Fair Value) (Details) - USD ($)
$ in Thousands
Aug. 31, 2019
Aug. 31, 2018
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities $ 1,254,921 $ 1,170,129
2027 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 300,000 300,000
2027 Notes | Significant Other Observable Inputs (Level 2) | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] 303,810 281,655
2026 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 350,000 350,000
2026 Notes | Significant Other Observable Inputs (Level 2) | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] 363,444 339,238
2023 Notes    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 330,000 330,000
2023 Notes | Significant Other Observable Inputs (Level 2) | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [1] 342,098 326,090
Short-term borrowings    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities 3,929 0
2022 Term Loan | Significant Other Observable Inputs (Level 2) | Fair Value    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities [2] 210,125 142,500
Revolving credit agreement | 2022 Term Loan    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Financial liabilities $ 210,125 $ 142,500
[1]
(1) The fair value of the notes is determined based on indicated market values.
[2] The short-term borrowings and Term Loan contain variable interest rates and their carrying value approximates fair value.