CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Income Statement [Abstract]
Revenues	$ 1,991.3	$ 1,936.2
Operating expenses	1,749.8	1,659.6
Selling, general and administrative expenses	150.6	153.1
Amortization of intangible assets	19.5	17.5
Operating profit	71.4	106.0
Income from unconsolidated affiliates	1.1	0.5
Interest expense	(19.8)	(6.2)
Income before income taxes	52.7	100.3
Income tax provision	(14.2)	(24.3)
Net income	38.5	76.0
Other comprehensive income
Interest rate swaps	(13.1)	0.6
Foreign currency translation and other	10.5	(2.4)
Income tax benefit (provision)	3.6	(0.2)
Comprehensive income	$ 39.6	$ 74.0
Net income per common share
Basic (in USD per share)	$ 0.58	$ 1.12
Diluted (in USD per share)	$ 0.58	$ 1.11
Weighted-average common and common equivalent shares outstanding
Basic (in shares)	66.3	67.9
Diluted (in shares)	66.8	68.3