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STOCKHOLDERS' EQUITY - Stock Repurchase Programs (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Apr. 30, 2021
Jul. 31, 2022
Jul. 31, 2021
Jan. 31, 2022
Mar. 22, 2022
Dec. 02, 2021
Class of Stock [Line Items]            
Number of common stock acquired (in shares)     1,602,000      
Cost of common stock repurchased     $ 75.5      
March 2021 Share Repurchase Program            
Class of Stock [Line Items]            
Number of common stock acquired (in shares) 1,600,000     0    
Cost of common stock repurchased $ 75.4          
December 2021 Share Repurchase Program            
Class of Stock [Line Items]            
Stock repurchase program, number of shares authorized (up to) (in shares)         500,000 1,500,000
Stock repurchased during period (in shares)   2,000,000        
Stock repurchased during period, value   $ 105.7