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Borrowing Arrangements - Future Minimum Payments For Borrowings (Details)
$ in Millions
Oct. 31, 2020
USD ($)
Debt Disclosure [Abstract]  
2021 (remainder) $ 0.0
2022 0.0
2023 350.0
2024 0.0
2025 0.0
Thereafter 1,300.0
Total principal outstanding $ 1,650.0