Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 30, 2016		Nov. 01, 2015		Nov. 02, 2014
Consolidated Statements of Income [Abstract]
Net sales	$ 483,456	[1],[2]	$ 524,206	[3]	$ 455,527
Cost and expenses:
Cost of sales	(364,750)		(381,070)		(355,181)
Selling, general and administrative	(44,577)		(48,983)		(49,638)
Research and development	(21,654)		(21,920)		(21,913)
Operating income	52,475		72,233		28,795
Other income (expense):
Gains on sales of investments	8,940		0		0
Gain on acquisition	0		0		16,372
Interest expense	(3,365)		(4,990)		(7,247)
Interest and other income (expense), net	2,424		2,797		3,410
Income before income tax provision	60,474		70,040		41,330
Income tax provision	(4,798)		(13,181)		(9,295)
Net income	55,676	[1],[2]	56,859	[3]	32,035
Net income attributable to noncontrolling interests	(9,476)		(12,234)		(6,039)
Net income attributable to Photronics, Inc. shareholders	$ 46,200	[1],[2]	$ 44,625	[3]	$ 25,996
Earnings per share:
Basic (in dollars per share)	$ 0.68	[1],[2]	$ 0.67	[3]	$ 0.42
Diluted (in dollars per share)	$ 0.64	[1],[2]	$ 0.63	[3]	$ 0.41
Weighted-average number of common shares outstanding:
Basic (in shares)	67,539		66,331		61,779
Diluted (in shares)	76,354		78,383		66,679

[1] Includes $8.8 million gain on sale of investment in a foreign entity.

[2] 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.

[3] Includes expenses of $0.9 million of financing expenses related to the exchange of $57.5 million 3.25% convertible senior notes.