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Commitments and Contingencies - Lease and Other Similar Commitments (Details)
$ in Millions
Oct. 31, 2017
USD ($)
Capital  
October 31, 2018 $ 3.1
October 31, 2019 3.1
October 31, 2020 3.0
October 31, 2021 2.3
October 31, 2022 0.8
Thereafter 0.3
Total minimum lease commitments 12.6
Operating and Other  
October 31, 2018 79.7 [1]
October 31, 2019 50.1 [1]
October 31, 2020 38.9 [1]
October 31, 2021 34.3 [1]
October 31, 2022 31.2 [1]
Thereafter 84.8 [1]
Total minimum lease commitments 319.0 [1]
Estimated future sublease rental income $ 20.6
[1] Includes total estimated sublease rental income of $20.6 million.