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Commitments and Contingencies - Schedule of Minimum Future Lease Payments Required Under Noncancelable Operating Leases (Details)
$ in Thousands
Aug. 31, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2019 $ 103,800
2020 50,653
2021 41,428
2022 29,733
2023 22,648
Thereafter 103,800
Total minimum future lease payments $ 352,062