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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Revenue Recognition - Narrative (Details) - Geographic Concentration Risk - Revenue Benchmark	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
United States
Disaggregation of Revenue [Line Items]
Concentration risk percentage	44.20%	40.00%	50.00%	51.00%
China
Disaggregation of Revenue [Line Items]
Concentration risk percentage	17.90%
CANADA
Disaggregation of Revenue [Line Items]
Concentration risk percentage	10.80%