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EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
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Jan. 30, 2017 | Oct. 30, 2016 | [1] | Jul. 31, 2016 | May 01, 2016 | [2] | Jan. 31, 2016 | [3] | Nov. 01, 2015 | Aug. 02, 2015 | May 03, 2015 | Feb. 01, 2015 | [4] | Oct. 30, 2016 | Nov. 01, 2015 | Nov. 02, 2014
Calculation of basic and diluted earnings per share [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Photronics, Inc. shareholders |  | $ 5,256 | $ 8,088 | $ 11,854 | $ 21,002 | $ 18,622 | $ 12,106 | $ 10,060 | $ 3,837 | $ 46,200 | [3],[5] | $ 44,625 | [4] | $ 25,996
Effect of dilutive securities [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense on convertible notes, net of related tax effects |  |  |  |  |  |  |  |  |  | 2,938 |  | 4,363 |  | 1,426
Earnings for diluted earnings per share |  |  |  |  |  |  |  |  |  | $ 49,138 |  | $ 48,988 |  | $ 27,422
Weighted-average common shares computations [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares used for basic earnings per share (in shares) |  |  |  |  |  |  |  |  |  | 67,539 |  | 66,331 |  | 61,779
Effect of dilutive securities [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible notes (in shares) |  |  |  |  |  |  |  |  |  | 7,841 |  | 11,085 |  | 3,945
Share-based payment awards (in shares) |  |  |  |  |  |  |  |  |  | 974 |  | 967 |  | 955
Dilutive common shares (in shares) |  |  |  |  |  |  |  |  |  | 8,815 |  | 12,052 |  | 4,900
Weighted-average common shares used for diluted earnings per share (in shares) |  |  |  |  |  |  |  |  |  | 76,354 |  | 78,383 |  | 66,679
Basic earnings per share (in dollars per share) |  | $ 0.08 | $ 0.12 | $ 0.18 | $ 0.31 | $ 0.28 | $ 0.18 | $ 0.15 | $ 0.06 | $ 0.68 | [3],[5] | $ 0.67 | [4] | $ 0.42
Diluted earnings per share (in dollars per share) |  | $ 0.08 | $ 0.12 | $ 0.16 | $ 0.28 | $ 0.25 | $ 0.17 | $ 0.14 | $ 0.06 | $ 0.64 | [3],[5] | $ 0.63 | [4] | $ 0.41
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total potentially dilutive shares excluded (in shares) |  |  |  |  |  |  |  |  |  | 1,635 |  | 1,641 |  | 12,996
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment awards issued after fiscal year 2016 (in shares) | 600 |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Awards [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total potentially dilutive shares excluded (in shares) |  |  |  |  |  |  |  |  |  | 1,635 |  | 1,641 |  | 1,911
Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total potentially dilutive shares excluded (in shares) |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 11,085
[1] | Includes a tax benefit in Taiwan of $3.0 million related to the recognition of prior period tax benefits and other tax positions no longer deemed necessary.
[2] | Includes a tax benefit in Taiwan of $1.8 million related to prior years.
[3] | Includes $8.8 million gain on sale of investment in a foreign entity.
[4] | Includes expenses of $0.9 million of financing expenses related to the exchange of $57.5 million 3.25% convertible senior notes.
[5] | Includes tax benefits in Taiwan of $4.8 million primarily related to the recognition of prior period tax benefits and other tax positions no longer deemed necessary.

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