PDMCX JOINT VENTURE, Carrying Amounts of Assets and Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Carrying amounts of assets and liabilities [Abstract]
Current assets	$ 427,527	$ 502,731
Total assets	1,118,665	1,110,009
Current liabilities	151,954	191,076
Total liabilities	207,573	205,440
Carrying Amount [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	24,142	9,625
Non-current assets	114,015	43,415
Total assets	138,157	53,040
Current liabilities	16,889	21,205
Non-current liabilities	42,094	20
Total liabilities	58,983	21,225
Net assets	79,174	31,815
Photronics Interest [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	12,074	4,813
Non-current assets	57,019	21,708
Total assets	69,093	26,521
Current liabilities	8,446	10,603
Non-current liabilities	21,051	10
Total liabilities	29,497	10,613
Net assets	$ 39,596	$ 15,908