v3.26.1
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Segment Reporting Information [Line Items]        
Revenues $ 2,290.0 $ 2,111.7 $ 4,533.5 $ 4,226.6
Management Reimbursement Revenue        
Segment Reporting Information [Line Items]        
Revenues $ 89.4 $ 84.5 $ 180.4 $ 166.5