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Summary of Significant Accounting Policies - Schedule of Major Customers that Represented More Than 10% of Accounts Receivable, Net (Detail) - Credit Concentration Risk - Accounts Receivable	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Distributor A
Concentration Risk [Line Items]
Concentration risk, percentage	22.00%	21.00%
Distributor B
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%	21.00%
Distributor C
Concentration Risk [Line Items]
Concentration risk, percentage	22.00%	18.00%
Distributor D
Concentration Risk [Line Items]
Concentration risk, percentage	20.00%	16.00%
Distributor E
Concentration Risk [Line Items]
Concentration risk, percentage	13.00%	18.00%

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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