Commitments and Contingencies (Details) $ in Millions	8 Months Ended	12 Months Ended
Oct. 31, 2015 USD ($)	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Oct. 31, 2013 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Rent expense		$ 27.5	$ 25.6	$ 22.8
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	$ 27.8	27.8
2017	24.2	24.2
2018	21.4	21.4
2019	18.9	18.9
2020	17.4	17.4
2021 and thereafter	129.1	129.1
Total	$ 238.8	238.8
Payments for Legal Settlements		$ 17.0
Loss Contingency, New Claims Filed, Number	50

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Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

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The total number of new claims filed pertaining to a loss contingency during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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