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Major Reseller Customers - Schedule of Revenue by Major Customers by Reporting Segments (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Reseller [Member] | Minimum [Member]
Major Reseller Customers [Line Items]
Concentration Risk, Percentage	5.00%	5.00%	5.00%

X

- Definition

Major reseller customers.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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