Organization and Significant Accounting Policies - Customers as Percentage of Total Revenues (Detail) - Sales [Member] - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jun. 25, 2021	Jul. 01, 2022	Jun. 25, 2021
Lam Research Corporation [Member]
Concentration Risk [Line Items]
Total	41.00%	38.30%	39.10%	41.60%
Applied Materials, Inc. [Member]
Concentration Risk [Line Items]
Total	22.70%	24.10%	22.90%	23.90%
Total Customer
Concentration Risk [Line Items]
Total	63.70%	62.40%	62.00%	65.50%