BASIS OF PRESENTATION (Tables)

3 Months Ended

Mar. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accounts Receivable Aging

The following table sets forth the aging of our net accounts receivable (net of allowance for contractual adjustments and prior to allowance for doubtful accounts), aged based on date of service and categorized based on the three primary overall types of accounts receivable characteristics (in thousands):

	March 31, 2016							December 31, 2015
	0 - 180 days		Over 180 days		Total			0 - 180 days		Over 180 days		Total
Government	$	21,183	$	10,717	$	31,900		$	19,944	$	11,369	$	31,313
Commercial	92,194		22,237		114,431			94,477		20,213		114,690
Patient	7,081		5,163		12,244			5,014		6,025		11,039
Gross accounts receivable	$	120,458	$	38,117	158,575			$	119,435	$	37,607	157,042
Allowance for doubtful accounts					(56,805		)					(59,689		)
Net accounts receivable					$	101,770						$	97,353