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Leases - Schedule of Future Undiscounted Payments (Details)
$ in Millions
Aug. 31, 2020
USD ($)
Leases [Abstract]  
2021 $ 18.5
2022 14.9
2023 12.3
2024 9.7
2025 9.0
Thereafter 14.4
Total undiscounted lease payments 78.8
Less: Discount due to interest (4.8)
Present value of lease liabilities $ 74.0