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PDMCX JOINT VENTURE (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Variable Interest Entity [Abstract]    
Consolidation liabilities, recourse $ 0.0  
PDMCX [Member]    
Variable Interest Entity [Abstract]    
Gain (loss) on consolidation 0.0  
Total committed investment 160.0  
Local financing $ 34.5  
Initial term of agreement 2 years  
Period before put or purchase option can be exercised 6 months  
Operating (loss) $ 4.9 $ 0.7
PDMCX [Member] | Minimum [Member]    
Variable Interest Entity [Abstract]    
Ownership percentage 20.00%  
PDMCX [Member] | Maximum [Member]    
Variable Interest Entity [Abstract]    
Number of business days for obtaining required approvals and clearance for exiting party 3 days  
PDMCX [Member] | Total Support Remaining [Member]    
Variable Interest Entity [Abstract]    
Financial or other support, amount $ 29.0  
PDMCX [Member] | Cash [Member] | Total Support Remaining [Member]    
Variable Interest Entity [Abstract]    
Financial or other support, amount 14.0  
PDMCX [Member] | Local Financing [Member]    
Variable Interest Entity [Abstract]    
Local financing $ 15.0  
Photronics Interest [Member]    
Variable Interest Entity [Abstract]    
Ownership percentage 50.01%  
Financial or other support, amount $ 48.0  
Maximum exposure to loss $ 39.6  
DNP [Member]    
Variable Interest Entity [Abstract]    
Ownership percentage 49.99%  
Financial or other support, amount $ 48.0