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Commitments And Contingencies (Minimum Annual Rentals On Leases) (Details)
$ in Thousands
Aug. 31, 2019
USD ($)
Commitments And Contingencies [Abstract]  
2020 $ 22,463
2021 18,022
2022 9,923
2023 5,184
2024 4,083
Thereafter 6,023
Total $ 65,698