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Leases (Details 3) $ in Millions	Jan. 31, 2020 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
2020 (remainder of the year)	$ 12.3
2021	43.8
2022	40.5
2023	34.6
2024	22.8
2025 and beyond	34.8
Total undiscounted minimum lease payments	188.8
Less: Imputed interest	13.6
Total operating lease liabilities	175.2
Finance Lease Liabilities, Payments, Due [Abstract]
2020 (remainder of the year)	0.7
2021	2.2
2022	1.6
2023	0.9
2024	0.7
2025 and beyond	0.2
Total undiscounted minimum lease payments	6.3
Less: Imputed interest	0.4
Total finance lease liabilities	$ 5.9

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