Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Measurements, Recurring - USD ($) $ in Millions	Oct. 31, 2019	Oct. 31, 2018
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 58.5	$ 39.1
Insurance deposits	0.8	0.6
Assets held in funded deferred compensation plan	2.5	2.7
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit facility	808.4	949.0
Interest rate swaps liabilities	(14.6)
Interest rate swaps assets		1.3
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in auction rate securities	$ 5.0	$ 5.0