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
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Revenue Recognition - Concentrations (Details)	3 Months Ended		9 Months Ended		12 Months Ended
Revenue Recognition - Concentrations (Details)	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
One distributor \| Revenue \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage	43.00%	43.00%	43.00%	43.00%
One distributor \| Accounts receivable \| Customer concentration risk
Concentration Risk [Line Items]
Concentration risk, percentage			42.00%		40.00%
Channel network \| Revenue \| Sales method risk
Concentration Risk [Line Items]
Concentration risk, percentage	92.00%	91.00%	91.00%	90.00%