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Other Assets - Schedule of Definite Lived Intagible Assets Estimated Annual Amortization Expense (Details)
$ in Thousands
Aug. 31, 2017
USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]  
Year 1 $ 3,396
Year 2 3,394
Year 3 3,152
Year 4 3,069
Year 5 2,828
Thereafter 17,395
Finite-Lived Intangible Assets, Future Amortization Expense $ 33,234