Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2018		Jan. 31, 2017
Income Statement [Abstract]
Revenues	$ 1,588.3		$ 1,326.7
Operating expenses	1,429.3		1,195.1
Selling, general and administrative expenses	109.0		97.3
Restructuring and related expenses	14.3	[1]	5.0
Amortization of intangible assets	16.2		5.5
Operating profit	19.5		23.8
Income from unconsolidated affiliates, net	0.5		1.4
Interest expense	(14.3)		(3.2)
Income from continuing operations before income taxes	5.8		22.0
Income tax benefit (provision)	22.2		(5.9)
Income from continuing operations	28.0		16.1
Loss from discontinued operations, net of taxes	(0.1)		(72.9)
Net income (loss)	27.8		(56.8)
Other comprehensive income (loss)
Unrealized gains on interest rate swaps, net of taxes of $5.0 and $1.1, respectively	13.6		1.6
Foreign currency translation	9.4		3.3
Comprehensive income (loss)	$ 50.9		$ (51.9)
Net income (loss) per common share — Basic
Income from continuing operations (in usd per share)	$ 0.42		$ 0.29
Loss from discontinued operations (in usd per share)	0.00		(1.30)
Net income (loss) (in usd per share)	0.42		(1.01)
Net income (loss) per common share — Diluted
Income from continuing operations (in usd per share)	0.42		0.28
Loss from discontinued operations (in usd per share)	0.00		(1.28)
Net income (loss) (in usd per share)	$ 0.42		$ (1.00)
Weighted-average common and common equivalent shares outstanding
Basic (in shares)	65.9		56.0
Diluted (in shares)	66.3		56.6
Dividends declared per common share (in usd per share)	$ 0.175		$ 0.170

[1] We include these costs within corporate expenses.