Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Additional Information (Details)

v3.10.0.1
Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)
$ in Thousands
May 31, 2018
Aug. 31, 2017
Impaired Assets [Line Items]    
Goodwill $ 538,792 $ 530,081
Future Amortization Expense, Remainder of 2018 5,100  
Future Amortization Expense, 2019 20,000  
Future Amortization Expense, 2020 19,300  
Future Amortization Expense, 2021 18,400  
Future Amortization Expense, 2022 16,400  
Future Amortization Expense, 2023 13,400  
Future Amortization Expense, Thereafter $ 23,100