CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ 44,319	$ (1,749)	$ 23,440
Foreign currency translation adjustments	(65)	(101)	(32)
Change in fair value cash flow hedge, net of taxes	0	(19,372)	(10,253)
Change in fair value of cash flow hedge from prior periods reclassified to earnings	3,695	3,448	0
COMPREHENSIVE INCOME (LOSS)	47,949	(17,774)	13,155
Less comprehensive income attributable to noncontrolling interests	19,592	13,091	8,684
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS	$ 28,357	$ (30,865)	$ 4,471