REVENUES - Contract with Customer, Asset and Liability (Details) - USD ($)	6 Months Ended
	Apr. 30, 2023	Oct. 31, 2022
Revenue from Contract with Customer [Abstract]
Billed trade receivables	$ 1,198,000,000	$ 1,138,800,000
Unbilled trade receivables	171,300,000	162,500,000
Costs incurred in excess of amounts billed	102,800,000	75,800,000
Capitalized commissions	30,600,000	$ 30,900,000
Capitalized contract price	7,500,000
Amortization of previously capitalized contract costs	7,800,000
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	144,700,000
Recognition of deferred revenue	(106,100,000)
Contract liabilities, balance at end of period	$ 118,200,000