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1. NATURE OF BUSINESS AND BASIS OF PRESENTATION (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Commercial Insurance/Managed Care Capitation | $ 104,614 | $ 106,558
Medicare | 33,666 | 35,713
Medicaid | 5,163 | 5,777
Workers Compensation/Personal Injury | 7,453 | 7,316
Other | 7,867 | 8,377
Service fee revenue, net of contractual allowances and discounts | 158,763 | 163,741
Provision for bad debts | (6,893) | (6,822)
Net service fee revenue | 151,870 | 156,919
Revenue under capitation arrangements | 17,006 | 16,021
Total net revenue | $ 168,876 | $ 172,940

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