Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Income tax benefit. Reclassification of cash flow hedges to earnings	$ 0.0	$ 0.1	$ 0.5
Income tax expense. Unrealized gain on cash flow hedges	0.0	0.0	0.2
Income tax benefit (expense). Minimum pension liability	$ 4.7	$ (0.5)	$ 15.7
Class A Common Stock
Dividend paid (usd per share)	$ 1.68	$ 1.68	$ 1.68
Class B Common Stock
Dividend paid (usd per share)	$ 2.51	$ 2.51	$ 2.51