Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 05, 2014
NonPlanOutstandingWarrantsMember
Entity Registrant Name	RadNet, Inc.
Entity Central Index Key	0000790526
Document Type	10-Q
Document Period End Date	Sep. 30, 2014
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		42,710,676
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2014