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ACQUISITIONS AND DIVESTITURES - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Feb. 11, 2019
Jul. 31, 2020
Apr. 30, 2020
Jul. 31, 2020
Business Acquisition [Line Items]        
Goodwill allocated to divestitures       $ 36.3
Rigid Industrial Packaging & Services        
Business Acquisition [Line Items]        
Goodwill allocated to divestitures       0.7
Paper Packaging & Services        
Business Acquisition [Line Items]        
Goodwill allocated to divestitures       35.6
Paper Packaging & Services | 2020 Divestiture        
Business Acquisition [Line Items]        
Proceeds from divestiture of interest in subsidiaries and affiliates     $ 85.0  
Proceeds from divestiture and deconsolidation, adjustment     $ 3.4  
Proceeds from divestiture and deconsolidation, net of adjustments   $ 81.6    
Goodwill allocated to divestitures   35.6    
Loss on sale of business       37.9
Caraustar        
Business Acquisition [Line Items]        
Payments to acquire business $ 1,834.9      
Goodwill $ 752.5 $ 729.3   $ 729.3
Building | Minimum | Caraustar        
Business Acquisition [Line Items]        
Useful life 1 year      
Building | Maximum | Caraustar        
Business Acquisition [Line Items]        
Useful life 20 years      
Equipment | Minimum | Caraustar        
Business Acquisition [Line Items]        
Useful life 1 year      
Equipment | Maximum | Caraustar        
Business Acquisition [Line Items]        
Useful life 15 years