COMMITMENTS AND CONTINGENCIES (Details)			9 Months Ended	12 Months Ended
	Apr. 29, 2019 stockholder	Jan. 11, 2018	Sep. 30, 2020 USD ($)	Dec. 31, 2013 USD ($)	Jun. 07, 2018 performancePeriod
Loss Contingencies [Line Items]
Employment agreement terms minimum period of employment		8 years
Number of class action lawsuits | performancePeriod					2
Number of distributors | performancePeriod					3
Loss contingency, number of plaintiffs | stockholder	2
Income tax effects allocated directly to equity, employee stock options				$ 546,000,000.0
Swedish Tax Agency
Loss Contingencies [Line Items]
Income Tax Examination, Estimate of Possible Loss			$ 56,000,000
Tax Year 2012 | IRS
Loss Contingencies [Line Items]
Liability (refund) from income tax examination			(4,700,000)
Tax Year 2013 | IRS
Loss Contingencies [Line Items]
Liability (refund) from income tax examination			0
Tax Year 2014 | IRS
Loss Contingencies [Line Items]
Liability (refund) from income tax examination			$ 17,100,000