Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Income Statement [Abstract]
Revenues	$ 1,326.7	$ 1,268.4
Expenses
Operating	1,195.1	1,141.3
Selling, general and administrative	97.3	99.9
Restructuring and related	5.0	7.2
Amortization of intangible assets	5.5	6.4
Total expenses	1,302.9	1,254.8
Operating profit	23.8	13.6
Income from unconsolidated affiliates, net	1.4	2.4
Interest expense	(3.2)	(2.7)
Income from continuing operations before income taxes	22.0	13.3
Income tax (provision) benefit	(5.9)	0.3
Income from continuing operations	16.1	13.6
Net (loss) income from discontinued operations	(72.9)	0.4
Net (loss) income	(56.8)	14.0
Other comprehensive income (loss)
Foreign currency translation	3.3	(8.5)
Other	1.6	0.1
Comprehensive (loss) income	$ (51.9)	$ 5.6
Net (loss) income per common share — Basic
Income from continuing operations (in dollars per share)	$ 0.29	$ 0.24
(Loss) income from discontinued operations (in dollars per share)	(1.30)	0.01
Net (loss) income (in dollars per share)	(1.01)	0.25
Net (loss) income per common share — Diluted
Income from continuing operations (in dollars per share)	0.28	0.24
Loss from discontinued operations (in dollars per share)	(1.28)	0.00
Net (loss) income (in dollars per share)	$ (1.00)	$ 0.24
Weighted-average common and common equivalent shares outstanding
Basic (in shares)	56.0	56.6
Diluted (in shares)	56.6	57.1
Dividends declared per common share (in dollars per share)	$ 0.170	$ 0.165