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Leases (Schedule of Minimum Lease Payments Under Operating Leases) (Details) - USD ($)
$ in Thousands
Aug. 31, 2021
Aug. 31, 2020
Operating Lease Liabilities Payments Due [Abstract]    
2022 $ 4,655  
2023 2,983  
2024 2,609  
2025 2,007  
2026 1,736  
Thereafter 12,657  
Total lease payments 26,647  
Less: interest 4,355  
Present value of lease liabilities $ 22,292 $ 30,985