REVENUE RECOGNITION (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The approximate percentage of net revenue by type of customer was as follows:

	Three Months Ended March 31,
	2018		2017
Healthcare insurers:
Fee-for-service	34	%	33	%
Capitated	4		4
Total healthcare insurers	38		37
Government payers	16		17
Client payers	30		30
Patient	12		11
Total DIS	96		95
DS	4		5
Net revenues	100	%	100	%