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
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Business Segments - Major Customers (Details) - Customer Concentration Risk	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
A.S. Watson Group \| Sales \| Affiliated entity \| Consumer Products segment
Concentration Risk [Line Items]
Concentration Risk, Percentage	15.20%	17.70%	14.30%	12.90%
A.S. Watson Group \| Trade receivables \| Affiliated entity
Concentration Risk [Line Items]
Concentration Risk, Percentage			43.60%		31.90%
Matakana Health \| Trade receivables
Concentration Risk [Line Items]
Concentration Risk, Percentage			13.10%		11.10%
Life Extension \| Trade receivables
Concentration Risk [Line Items]
Concentration Risk, Percentage			11.00%		17.70%
Amazon Marketplaces \| Trade receivables
Concentration Risk [Line Items]
Concentration Risk, Percentage			12.50%		12.00%