CONSOLIDATED STATEMENTS OF COMREHENSIVE INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Income Statement [Abstract]
Revenues	$ 8,745.9	$ 8,359.4	$ 8,096.4
Operating expenses	7,670.8	7,325.9	7,037.6
Selling, general and administrative expenses	697.4	765.3	572.8
Restructuring and related expenses	13.4	0.0	0.0
Amortization of intangible assets	52.5	56.1	76.5
Operating profit	311.7	212.0	409.5
Income from unconsolidated affiliates	4.6	6.5	3.9
Interest expense	(96.4)	(85.0)	(82.3)
Income before income taxes	219.9	133.6	331.1
Income tax provision	(57.6)	(52.2)	(79.7)
Net income	162.4	81.4	251.3
Other comprehensive (loss)/income
Interest rate swaps	(9.3)	(22.9)	(0.5)
Foreign currency translation and other	5.5	6.8	7.3
Income tax provision	2.4	6.3	0.1
Comprehensive income	$ 161.0	$ 71.6	$ 258.1
Net income per common share
Basic (in USD per share)	$ 2.61	$ 1.29	$ 3.81
Diluted (in USD per share)	$ 2.59	$ 1.28	$ 3.79
Weighted-average common and common equivalent shares outstanding
Basic (in shares)	62.3	63.2	66.0
Diluted (in shares)	62.7	63.6	66.3