EARNINGS PER SHARE (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Jul. 29, 2012	Jul. 31, 2011	Jul. 29, 2012	Jul. 31, 2011
Calculation of basic and diluted earnings (loss) per share [Abstract]
Net income attributable to Photronics, Inc.	$ 10,950	$ 11,265	$ 24,035	$ 6,938
Effect of dilutive securities [Abstract]
Interest expense on convertible notes, net of related tax effects	1,542	1,595	4,626	0
Gains related to common stock warrants fair value adjustment	0	(221)	(94)	0
Earnings for diluted earnings per share	$ 12,492	$ 12,639	$ 28,567	$ 6,938
Weighted-average common shares computations [Abstract]
Weighted-average common shares used for basic earnings per share (in shares)	60,121	58,987	60,008	56,163
Effect of dilutive securities [Abstract]
Convertible notes (in shares)	15,423	15,909	15,423	0
Share-based payment awards (in shares)	707	1,314	789	1,252
Common stock warrants (in shares)	185	534	240	309
Potentially dilutive common shares (in shares)	16,315	17,757	16,452	1,561
Weighted-average common shares used for diluted earnings per share (in shares)	76,436	76,744	76,460	57,724
Basic earnings per share (in dollars per share)	$ 0.18	$ 0.19	$ 0.40	$ 0.12
Diluted earnings per share (in dollars per share)	$ 0.16	$ 0.16	$ 0.37	$ 0.12
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares excluded (in shares)	2,616	2,206	2,546	16,156
Share-based payment awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares excluded (in shares)	2,616	2,206	2,546	2,412
Convertible notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares excluded (in shares)	0	0	0	13,519
Common stock warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares excluded (in shares)	0	0	0	225

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