Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2019	Oct. 31, 2018
Foreign Currency Forward Contracts | Designated as hedging instrument | Cash flow hedging
Derivative [Line Items]
Derivative asset, notional amount	$ 155.7	$ 163.2
Derivative maturity (in months)	24 months
Foreign Currency Forward Contracts | Not designated as hedging instrument
Derivative [Line Items]
Derivative asset, notional amount	$ 120.0	162.6
Derivative maturity (in months)	12 months
Forward Starting Interest Rate Swaps | Designated as hedging instrument | Cash flow hedging | Secured debt | 2025 Term Loan
Derivative [Line Items]
Derivative asset, notional amount	$ 350.0	$ 350.0
Derivative, fixed interest rate	2.957%