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Income Taxes - Income Tax (Benefit)/Expense at Federal Statutory Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 29, 2016
Income Tax Expense Benefit Continuing Operations Income Tax Reconciliation [Abstract]
Income tax expense at federal statutory rate	$ 0.5	$ 17.5	$ 15.1
Taxes on foreign income which differ from the U.S. statutory rate	(0.3)	0.1
State expense	0.5	2.3	1.6
Deferred tax adjustments			(1.5)
Manufacturing and research incentives	(2.7)	(2.1)	(3.0)
Nondeductible items	0.7	0.9	1.0
Uncertain tax positions	(0.4)		0.5
Valuation allowance	2.2
Remeasurement of deferred taxes - U.S. Tax Reform	(11.3)
Other items			(0.7)
(Benefit) provision for income taxes	$ (10.8)	$ 18.7	$ 13.0

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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