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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Segment and Enterprise-wide Information - Concentration (Details) - Sales Revenue, Net - Customer Concentration Risk	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Amazon.com
Concentration Risk [Line Items]
Concentration risk, percentage	22.90%	18.70%	18.90%	14.10%
Dick's Sporting Goods
Concentration Risk [Line Items]
Concentration risk, percentage		19.30%		10.20%