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Leases (Schedule of Future Minimum Lease Payments Under Operating Leases) (Details)
$ in Thousands
Aug. 31, 2019
USD ($)
Operating Leases Future Minimum Payments Due [Abstract]  
2020 $ 6,065
2021 5,266
2022 4,771
2023 3,414
2024 3,107
Thereafter 20,119
Total lease payments $ 42,742