REVENUES - Contract with Customer, Asset and Liability (Details) - USD ($)	9 Months Ended
	Jul. 31, 2023	Oct. 31, 2022
Revenue from Contract with Customer [Abstract]
Billed trade receivables	$ 1,164,500,000	$ 1,138,800,000
Unbilled trade receivables	190,300,000	162,500,000
Costs incurred in excess of amounts billed	147,200,000	75,800,000
Capitalized commissions	30,000,000.0	$ 30,900,000
Capitalized contract price	10,300,000
Amortization of previously capitalized contract costs	11,200,000
Impairment loss recorded on costs capitalized	0
Contract with Customer, Liabilities [Roll Forward]
Contract liabilities, balance at beginning of period	79,600,000
Additional contract liabilities	265,700,000
Recognition of deferred revenue	(207,600,000)
Contract liabilities, balance at end of period	$ 137,700,000