CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Comprehensive Income Loss
NET INCOME (LOSS) ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS	$ 64,517	$ 7,231	$ (12,852)
Foreign currency translation adjustments	67	(34)	6
Change in fair value of cash flow hedge			(1,472)
Reclassification of net cash flow hedge losses included in net loss during the period	918	1,225	917
COMPREHENSIVE INCOME (LOSS)	65,502	8,422	(13,401)
Less comprehensive (loss) income attributible to non-controlling interests	(230)	111	167
COMPREHENSIVE INCOME (LOSS) ATTRIBUTIBLE TO RADNET, INC. COMMON STOCKHOLDERS	$ 65,272	$ 8,533	$ (13,234)