PDMCX JOINT VENTURE, Carrying Amounts of Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 28, 2019	Oct. 31, 2018
Carrying amounts of assets and liabilities [Abstract]
Current assets	$ 371,968	$ 502,731
Total assets	1,085,238	1,110,009
Current liabilities	139,284	191,076
Total liabilities	186,910	205,440
Carrying Amount [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	31,219	9,625
Non-current assets	116,677	43,415
Total assets	147,896	53,040
Current liabilities	22,668	21,205
Non-current liabilities	35,937	20
Total liabilities	58,605	21,225
Net assets	89,291	31,815
Photronics Interest [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	15,612	4,813
Non-current assets	58,350	21,708
Total assets	73,962	26,521
Current liabilities	11,336	10,603
Non-current liabilities	17,972	10
Total liabilities	29,308	10,613
Net assets	$ 44,654	$ 15,908