PDMCX JOINT VENTURE, Carrying Amounts of Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Oct. 31, 2020
Carrying amounts of assets and liabilities [Abstract]
Current assets	$ 506,112	$ 500,139
Total assets	1,232,062	1,188,182
Current liabilities	145,531	142,939
Total liabilities	253,566	225,916
Carrying Amount [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	43,753	56,095
Noncurrent assets	144,069	141,097
Total assets	187,822	197,192
Current liabilities	29,545	31,922
Noncurrent liabilities	44,620	55,676
Total liabilities	74,165	87,598
Net assets	113,657	109,594
Photronics Interest [Member]
Carrying amounts of assets and liabilities [Abstract]
Current assets	21,881	28,053
Noncurrent assets	72,049	70,562
Total assets	93,930	98,615
Current liabilities	14,776	15,964
Noncurrent liabilities	22,314	27,844
Total liabilities	37,090	43,808
Net assets	$ 56,840	$ 54,807