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REDEEMABLE NONCONTROLLING INTERESTS - Rollforward of Redeemable Noncontrolling Interest (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Redeemable Noncontrolling Interest, Equity [Roll Forward]    
October 31, 2019 $ 21.3  
Current period mark to redemption value (3.3)  
Redeemable noncontrolling interest share of income and other 0.1 $ 0.8
Dividends to redeemable noncontrolling interest and other (0.3)  
January 31, 2020 $ 17.8