Operating Segments and Geographic Information, Revenue by Major Customers (Detail)	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	39.00%	41.00%	39.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Dell Inc. [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	17.00%	17.00%	16.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Lenovo Group Limited [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	12.00%	13.00%	12.00%
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | HP Inc. [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	10.00%	11.00%	11.00%
Credit Concentration Risk [Member] | Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	43.00%	39.00%