EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended
Mar. 09, 2020	Feb. 02, 2020	Jan. 27, 2019
Calculation of basic and diluted earnings per share [Abstract]
Net income attributable to Photronics, Inc. shareholders		$ 10,300	$ 5,267
Earnings used for diluted earnings per share		$ 10,300	$ 5,267
Weighted-average common shares computations [Abstract]
Weighted-average common shares used for basic earnings per share (in shares)		65,554	66,583
Effect of dilutive securities [Abstract]
Share-based payment awards (in shares)		895	464
Potentially dilutive common shares (in shares)		895	464
Weighted-average common shares used for diluted earnings per share (in shares)		66,449	67,047
Basic earnings per share (in dollars per share)		$ 0.16	$ 0.08
Diluted earnings per share (in dollars per share)		$ 0.16	$ 0.08
Antidilutive Securities [Abstract]
Potentially dilutive shares excluded (in shares)		173	6,605
Subsequent Event [Member]
Antidilutive Securities [Abstract]
Repurchased common stock (in shares)	100
Share-based Payment Awards [Member]
Antidilutive Securities [Abstract]
Potentially dilutive shares excluded (in shares)		173	1,063
Convertible Notes [Member]
Antidilutive Securities [Abstract]
Potentially dilutive shares excluded (in shares)		0	5,542

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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