Document and Entity Information	3 Months Ended
	Oct. 02, 2011	Oct. 31, 2011
Document Information [Line Items]
Entity Registrant Name	EXTREME NETWORKS INC
Entity Central Index Key	0001078271
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Oct. 02, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		93,055,019