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Concentrations - Customers That Accounted for at Least ten percent of Consolidated Net Revenue (Detail) - Sales Revenue Net - Customer Concentration Risk
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Seagate Technology    
Concentration Risk [Line Items]    
Concentration risk, percentage 49.00% 52.00%
HGST    
Concentration Risk [Line Items]    
Concentration risk, percentage [1] 13.00%
U.S. Government    
Concentration Risk [Line Items]    
Concentration risk, percentage 20.00% [1]
JolywoodHongkongIndustrialHoldings CoLimited [Member]    
Concentration Risk [Line Items]    
Concentration risk, percentage 14.00% [1]
[1] Less than 10%