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Leases - Future Minimum Obligations Non-Cancelable Operating Leases (Details)
$ in Thousands
Aug. 31, 2019
USD ($)
Future minimum obligations under non-cancelable operating leases:  
2020 $ 21,286
2021 15,301
2022 12,488
2023 10,419
2024 5,035
Thereafter 16,095
Total $ 80,624