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PDMCX JOINT VENTURE, VIE (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2018
Aug. 01, 2021
Aug. 02, 2020
Aug. 01, 2021
Aug. 02, 2020
Photronics and DNP [Member]          
Variable Interest Entity [Abstract]          
Financial or other support, amount       $ 50.0  
Number of business days for obtaining required approvals and clearance for exiting party       3 days  
Term from inception after which interest holder may put their interest in the VIE       2 years  
Period before put or purchase option can be exercised       6 months  
Operating income (loss)   $ 1.8 $ (0.8) $ 4.0 $ (4.8)
Photronics and DNP [Member] | Minimum [Member]          
Variable Interest Entity [Abstract]          
Ownership percentage       20.00%  
Financial or other support, amount       $ 160.0  
PDMCX [Member]          
Variable Interest Entity [Abstract]          
Collateral amount   91.3   $ 91.3  
Photronics Interest [Member]          
Variable Interest Entity [Abstract]          
Gain (loss) on consolidation $ 0.0        
Ownership percentage       50.01%  
Financial or other support, amount       $ 65.0  
Maximum exposure to loss   $ 60.9   60.9  
DNP [Member]          
Variable Interest Entity [Abstract]          
Ownership percentage 49.99%        
Financial or other support, amount       $ 65.0