For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Apr. 30, 2020
Concentration Risk [Line Items]
CARES Act grant						$ 11.7
Accrued expenses and other current liabilities
Concentration Risk [Line Items]
CARES Act grant	$ 11.7			$ 11.7
Revenue from Contract with Customer Benchmark \| Company's Largest Payer
Concentration Risk [Line Items]
Concentration risk	16.00%		18.00%	15.00%	21.00%
Contract term				2 years
Revenue from Contract with Customer Benchmark \| Governmental Programs
Concentration Risk [Line Items]
Concentration risk	12.00%		13.00%	12.00%	13.00%
Accounts Receivable \| Governmental Programs
Concentration Risk [Line Items]
Concentration risk	13.00%	12.00%
Cost of Goods and Service, Product and Service Benchmark \| Medical Supply Vendors
Concentration Risk [Line Items]
Concentration risk	72.00%		73.00%	72.00%	74.00%