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
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Summary of Significant Accounting Policies - Schedule of Customers Representing Greater than 10% of Accounts Receivable and Revenue (Detail) - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue \| Customer A
Concentration Risk [Line Items]
Percentage of concentration risk	11.00%
Revenue \| Customer C
Concentration Risk [Line Items]
Percentage of concentration risk	10.00%
Revenue \| Customer G
Concentration Risk [Line Items]
Percentage of concentration risk	19.00%
Revenue \| Customer H
Concentration Risk [Line Items]
Percentage of concentration risk	12.00%	14.00%
Accounts Receivable \| Customer A
Concentration Risk [Line Items]
Percentage of concentration risk	30.00%
Accounts Receivable \| Customer B
Concentration Risk [Line Items]
Percentage of concentration risk	25.00%
Accounts Receivable \| Customer C
Concentration Risk [Line Items]
Percentage of concentration risk	20.00%
Accounts Receivable \| Customer D
Concentration Risk [Line Items]
Percentage of concentration risk		34.00%
Accounts Receivable \| Customer E
Concentration Risk [Line Items]
Percentage of concentration risk		25.00%
Accounts Receivable \| Customer F
Concentration Risk [Line Items]
Percentage of concentration risk		15.00%