PDMCX JOINT VENTURE, Carrying Amounts of Assets and Liabilities (Details) - USD ($) $ in Thousands	Jul. 28, 2019	Oct. 31, 2018
Carrying amounts of assets and liabilities [Abstract]
Current assets	$ 420,467	$ 502,731
Total assets	1,114,195	1,110,009
Current liabilities	159,274	191,076
Total liabilities	213,857	205,440
Carrying Amount [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	20,751	9,625
Non-current assets	123,015	43,415
Total assets	143,766	53,040
Current liabilities	15,792	21,205
Non-current liabilities	43,015	20
Total liabilities	58,807	21,225
Net assets	84,959	31,815
Photronics Interest [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	10,378	4,813
Non-current assets	61,520	21,708
Total assets	71,898	26,521
Current liabilities	7,898	10,603
Non-current liabilities	21,512	10
Total liabilities	29,410	10,613
Net assets	$ 42,488	$ 15,908