REVENUE RECOGNITION (Tables)

9 Months Ended

Sep. 30, 2021

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 September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Healthcare insurers:
Fee-for-service	41	%	33	%	39	%	33	%
Capitated	2		2		3		3
Total healthcare insurers	43		35		42		36
Government payers	10		10		10		12
Client payers	31		40		33		37
Patients	13		12		12		12
Total DIS	97		97		97		97
DS	3		3		3		3
Net revenues	100	%	100	%	100	%	100	%

Accounts Receivable Disaggregation

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

	September 30, 2021		December 31, 2020
Healthcare Insurers	35	%	34	%
Government Payers	6		6
Client Payers	36		46
Patients (including coinsurance and deductible responsibilities)	20		11
Total DIS	97		97
DS	3		3
Net accounts receivable	100	%	100	%