Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Additional Information (Details)

v3.10.0.1
Fair Value Measurement - Additional Information (Details) - USD ($)
$ in Thousands
Nov. 30, 2018
Aug. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Foreign Currency Contract, Asset, Fair Value Disclosure $ 158 $ 396
Senior Notes | 5.625% Senior Notes    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of long-term debt $ 289,400 $ 293,500