Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Income Statement [Abstract]
Revenues	$ 1,612.9	$ 1,607.9
Operating expenses	1,433.7	1,446.0
Selling, general and administrative expenses	117.6	112.7
Restructuring and related expenses	3.1	3.8
Amortization of intangible assets	12.6	15.2
Operating profit	45.8	30.3
Income from unconsolidated affiliates	0.9	0.9
Interest expense	(10.2)	(13.5)
Income from continuing operations before income taxes	36.5	17.8
Income tax provision	(8.6)	(4.7)
Income from continuing operations	27.9	13.0
Income (loss) from discontinued operations, net of taxes	0.1	(0.1)
Net income	28.0	13.0
Other comprehensive income (loss)
Interest rate swaps	(1.1)	(8.7)
Foreign currency translation	0.4	3.1
Income tax benefit	0.3	2.4
Comprehensive income	$ 27.6	$ 9.7
Net income per common share — Basic
Income from continuing operations (in usd per share)	$ 0.42	$ 0.20
Income from discontinued operations (in usd per share)	0	0
Net income (in usd per share)	0.42	0.20
Net income per common share — Diluted
Income from continuing operations (in usd per share)	0.41	0.20
Income from discontinued operations (in usd per share)	0	0
Net income (in usd per share)	$ 0.42	$ 0.19
Weighted-average common and common equivalent shares outstanding
Basic (in shares)	66.9	66.4
Diluted (in shares)	67.2	66.7