CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 7,591	$ 6,467	$ 5,668	$ 1,013
Foreign currency translation adjustments	3	(91)	(5)	(69)
Change in fair value of cash flow hedge, net of taxes	(8,002)		(9,198)
Change in fair value of cash flow hedge, net of taxes		1,199		4,294
COMPREHENSIVE (LOSS) INCOME	(408)	7,575	(3,535)	5,238
Less comprehensive income attributable to noncontrolling interests	2,692	1,061	4,503	2,945
COMPREHENSIVE LOSS ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS	$ (3,100)	$ 6,514	$ (8,038)	$ 2,293