Document And Entity Information - shares	3 Months Ended
	Jun. 28, 2015	Jul. 31, 2015
Document Information [Abstract]
Entity Registrant Name	INTEGRATED DEVICE TECHNOLOGY INC
Entity Central Index Key	0000703361
Current Fiscal Year End Date	--04-03
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		148,268,097
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 28, 2015