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Business Segment, Geographic Area, and Significant Customer Information - Summary of Net Revenues by Major Customers (Detail) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lam Research Corporation [Member]
Segment Reporting Information [Line Items]
Percentage of total net revenues	18.40%	14.10%	14.60%	12.30%
Applied Materials, Inc. [Member]
Segment Reporting Information [Line Items]
Percentage of total net revenues	10.60%	11.00%	10.70%	10.80%

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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.

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