REVENUES - Contract with Customer, Asset and Liability (Details) - USD ($)	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
Revenue from Contract with Customer [Abstract]
Billed trade receivables	$ 1,138,800,000	$ 1,057,600,000
Unbilled trade receivables	162,500,000	112,100,000
Costs incurred in excess of amounts billed	75,800,000	52,500,000
Capitalized commissions	30,900,000	$ 27,800,000
Capitalized contract price	17,400,000
Amortization of previously capitalized contract costs	14,400,000
Impairment loss recorded on costs capitalized	0
Contract with Customer, Liabilities [Roll Forward]
Contract liabilities, balance at beginning of period	58,500,000
Acquisition additions	31,600,000
Additional contract liabilities	213,900,000
Recognition of deferred revenue	(224,400,000)
Contract liabilities, balance at end of period	$ 79,600,000