Document and Entity Information	3 Months Ended
	Mar. 31, 2015	May 07, 2014
Document and Entity Information
Entity Registrant Name	RadNet, Inc.
Entity Central Index Key	0000790526
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer	No
Is Entity a Voluntary Filer	No
Is Entity's Reporting Status Current	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		44,269,449
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015