Document and Entity Information - shares	6 Months Ended
	Apr. 28, 2019	Jun. 03, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	PHOTRONICS INC
Entity Central Index Key	0000810136
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		67,065,655
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 28, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2