Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Jan. 31, 2020	Nov. 01, 2019
Lease assets
Operating lease, right-of-use asset	$ 163.4	$ 167.5
Finance lease, right-of-use asset	9.1
Total lease assets	172.5
Current liabilities
Operating leases	36.0	36.3
Finance leases	4.5
Noncurrent liabilities
Operating leases	150.0	$ 154.2
Finance leases	2.2
Total lease liabilities	192.7
Finance leases, accumulated depreciation	$ 11.1