CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,922)	$ (5,454)
Foreign currency translation adjustments	(8)	22
Change in fair value of cash flow hedge, net of taxes	(1,196)
Change in fair value of cash flow hedge, net of taxes		3,095
COMPREHENSIVE LOSS	(3,126)	(2,337)
Less comprehensive income attributable to noncontrolling interests	1,811	1,884
COMPREHENSIVE LOSS ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS	$ (4,937)	$ (4,221)