Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income Loss (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	$ 1,047.5	$ 957.9
Ending balance, value	1,154.2	1,047.5
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(249.3)	(270.2)
Other Comprehensive Income (Loss)	(43.5)	20.9
Ending balance, value	(292.8)	(249.3)
Derivative Financial Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	5.1	0.0
Other Comprehensive Income (Loss)	8.3	5.1
Ending balance, value	13.4	5.1
Minimum Pension Liability Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(114.0)	(128.2)
Other Comprehensive Income (Loss)	16.3	14.2
Ending balance, value	(97.7)	(114.0)
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance, value	(358.2)	(398.4)
Other Comprehensive Income (Loss)	(18.9)	40.2
Ending balance, value	$ (377.1)	$ (358.2)