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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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - Supplier	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Purchases \| Keary Global and its affiliate, Keary International - related parties
Concentration Risk [Line Items]
Concentration risk percentage	13.70%	13.30%	14.30%	11.00%
Accounts payable \| Keary Global and its affiliate, Keary International - related parties
Concentration Risk [Line Items]
Concentration risk percentage					18.00%
Accounts payable \| Taizhou Fuling Plastics Co., Ltd
Concentration Risk [Line Items]
Concentration risk percentage					11.00%
Accounts payable \| Fuling Technology Co., Ltd.
Concentration Risk [Line Items]
Concentration risk percentage			24.00%
Accounts payable \| Wen Ho Industrial Co.
Concentration Risk [Line Items]
Concentration risk percentage			12.00%