CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 10,225	$ 5,092	$ (12,734)	$ 10,760
Foreign currency translation adjustments	11	(23)	6	(28)
Change in fair value of cash flow hedge, net of taxes	195	(5,283)	(18,764)	(14,481)
Amount of loss reclassified from accumulated OCI into income (prior period effective portion)	969	0	1,861	0
COMPREHENSIVE INCOME (LOSS)	11,400	(214)	(29,631)	(3,749)
Less comprehensive income attributable to noncontrolling interests	4,069	1,897	8,063	6,400
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS	$ 7,331	$ (2,111)	$ (37,694)	$ (10,149)