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
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Business Segment and Geographic Information - Additional Information (Detail) - segment	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue, Major Customer [Line Items]
Number of operating segments			1
United States \| Revenue from Contract with Customer Benchmark \| Customer Concentration Risk
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more	68.00%	71.00%	68.00%	70.00%
International \| Revenue from Contract with Customer Benchmark \| Customer Concentration Risk
Revenue, Major Customer [Line Items]
Customers accounted for 10% or more	95.00%	96.00%	95.00%	95.00%