1. NATURE OF BUSINESS AND BASIS OF PRESENTATION (Tables)

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Service fee revenue

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
Commercial insurance	$	117,107		$	104,901		$	216,872		$	204,977
Medicare		42,088			39,412			79,172			77,317
Medicaid		5,974			6,230			11,469			12,049
Workers' compensation/personal injury		8,130			7,853			15,559			15,034
Other		15,104			10,279			30,361			18,061
Service fee revenue, net of contractual allowances and discounts		188,403			168,675			353,433			327,438
Provision for bad debts		(8,387	)		(7,520	)		(15,862	)		(14,413	)
Net service fee revenue		180,016			161,155			337,571			313,025
Revenue under capitation arrangements		24,273			17,927			47,985			34,933
Total net revenue	$	204,289		$	179,082		$	385,556		$	347,958

Loans

	As of June 30, 2015
	Face Value		Discount			Total Carrying Value
First Lien Term Loans	$	389,367	$	(8,061	)	$	381,306
2015 Incremental First		74,013		(570	)		73,443
Second Lien Term Loans		180,000		(2,451	)		177,549
Total	$	643,380	$	(11,082	)	$	632,298