DEI Document	3 Months Ended
	Mar. 31, 2014	Apr. 29, 2014	Dec. 31, 2013
DEI [Abstract]
Common Stock, Shares, Issued			29,198,000
Entity Registrant Name	Radisys Corporation
Entity Central Index Key	0000873044
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		36,057,696
Common Stock, Shares, Outstanding			29,198,000