Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Nov. 30, 2016	Aug. 31, 2016
Impaired Assets [Line Items]
Goodwill	$ 509,478	$ 519,276
Future Amortization Expense, Remainder of 2016	14,700
Future Amortization Expense, 2017	19,400
Future Amortization Expense, 2018	19,200
Future Amortization Expense, 2019	18,600
Future Amortization Expense, 2020	17,500
Future Amortization Expense, 2021	15,800
Future Amortization Expense, Thereafter	$ 35,500