SEGMENT REPORTING - Selected Financial Information of Operating Segment (Details) - Operating Segments [Member] - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
SEGMENT REPORTING [Abstract]
Revenues	$ 849,294	$ 866,946	$ 892,076
Cost of goods sold	(549,464)	(551,000)	(555,914)
Gross Profit	299,830	315,946	336,162
Selling, general and administrative expense	(75,625)	(77,760)	(69,458)
Research and development expense	(15,804)	(16,576)	(13,654)
Other operating expense	(240)	(92)	0
Operating Income	208,161	221,518	253,050
Non-operating income, net	13,623	25,897	16,896
Income tax provision	(31,550)	(63,567)	(70,312)
Net income attributable to noncontrolling interests	(53,829)	(53,160)	(74,149)
Net income attributable to Photronics, Inc. shareholders	$ 136,405	$ 130,688	$ 125,485