Income Taxes - Components of Income From Continuing Operations Before Income Taxes and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Income Tax Disclosure [Abstract]
United States	$ 137.1	$ 94.8	$ 76.1
Foreign	23.1	(7.1)	10.8
Income from continuing operations before income taxes	160.2	87.7	86.9
Current:
Federal	(6.4)	(4.3)	(5.9)
State	(10.7)	(7.3)	(6.0)
Foreign	(5.9)	(3.9)	(3.0)
Deferred:
Federal	(8.5)	21.8	5.0
State	(1.6)	0.2	0.3
Foreign	0.4	1.7	0.8
Income tax (provision) benefit	$ (32.7)	$ 8.2	$ (8.8)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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