REVENUES - Contract with Customer, Asset and Liability (Details) - USD ($) |
9 Months Ended | |
|---|---|---|
Jul. 31, 2022 |
Oct. 31, 2021 |
|
| Revenue from Contract with Customer [Abstract] | ||
| Billed trade receivables | $ 1,078,000,000 | $ 1,057,600,000 |
| Unbilled trade receivables | 190,300,000 | 112,100,000 |
| Costs incurred in excess of amounts billed | 78,700,000 | 52,500,000 |
| Capitalized commissions | 29,600,000 | $ 27,800,000 |
| Capitalized contract price | 12,200,000 | |
| Capitalized contract cost, amortization | 10,500,000 | |
| Capitalized contract cost, impairment loss | 0 | |
| Contract with Customer, Liabilities [Roll Forward] | ||
| Contract liabilities, balance at beginning of period | 58,500,000 | |
| Additional contract liabilities | 165,200,000 | |
| Recognition of deferred revenue | (165,100,000) | |
| Contract liabilities, balance at end of period | $ 58,600,000 |