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LONG-TERM DEBT - Other Financing Arrangements (Details)
€ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2017
USD ($)
Apr. 30, 2016
EUR (€)
Jul. 31, 2013
EUR (€)
payment
debt_instrument
Apr. 30, 2017
USD ($)
Apr. 30, 2016
USD ($)
Oct. 31, 2016
USD ($)
Aug. 31, 2015
USD ($)
Debt Instrument [Line Items]              
Proceeds from long-term debt       $ 30.0 $ 0.7    
Total long-term debt outstanding $ 2,146.2     $ 2,146.2   $ 2,128.9  
Investment in Facility              
Debt Instrument [Line Items]              
Long-term investment commitment, minimum amount             $ 47.0
Loan              
Debt Instrument [Line Items]              
Number of incremental debt instruments | debt_instrument     2        
Loan | Italian subsidized loan due June 2020              
Debt Instrument [Line Items]              
Amount of debt issued | €     € 6.0        
Proceeds from long-term debt | €   € 0.6 € 5.4        
Stated rate (as percent) 0.50%   0.50% 0.50%      
Total long-term debt outstanding $ 3.6     $ 3.6   4.1  
Loan | Italian bank loan due June 2020              
Debt Instrument [Line Items]              
Amount of debt issued | €     € 0.7        
Proceeds from long-term debt | €   € 0.1 € 0.6        
Number of semi-annual installments | payment     6        
Total long-term debt outstanding $ 0.7     0.7   0.7  
Loan | Italian bank loan due June 2020 | Euribor rate              
Debt Instrument [Line Items]              
Basis spread (as percent) 7.10%   7.10%        
Loan | Government of Austria research and development loans due March 2020              
Debt Instrument [Line Items]              
Total long-term debt outstanding $ 2.7     $ 2.7   $ 3.5  
Other Obligations              
Debt Instrument [Line Items]              
Percentage of property tax payment due (as percent)             50.00%