Leases - Maturities of Operating and Finance Lease Liabilities After Adoption of 842 (Details) $ in Millions	Oct. 31, 2020 USD ($)
Operating Lease Liabilities
Fiscal 2021	$ 41.3
Fiscal 2022	34.3
Fiscal 2023	29.2
Fiscal 2024	24.1
Fiscal 2025	18.2
Thereafter	43.3
Total lease payments	190.4
Less: imputed interest	24.0
Present value of lease liabilities	166.4
Finance Lease Liabilities
Fiscal 2021	3.3
Fiscal 2022	1.7
Fiscal 2023	0.9
Fiscal 2024	0.0
Fiscal 2025	0.0
Thereafter	0.0
Total lease payments	5.9
Less: imputed interest	0.8
Present value of lease liabilities	5.1
Total
Fiscal 2021	44.6
Fiscal 2022	36.0
Fiscal 2023	30.1
Fiscal 2024	24.1
Fiscal 2025	18.2
Thereafter	43.3
Total lease payments	196.3
Less: imputed interest	24.9
Present value of lease liabilities	$ 171.4

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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