XML 33 R57.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Concentrations - Customers That Accounted for at Least Ten percent of Accounts Receivable (Detail) - Accounts Receivable - Credit Concentration Risk
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Seagate Technology    
Concentration Risk [Line Items]    
Concentration risk, percentage 60.00% 45.00%
HGST    
Concentration Risk [Line Items]    
Concentration risk, percentage [1] 25.00%
USGovernment [Member]    
Concentration Risk [Line Items]    
Concentration risk, percentage 25.00% [1]
[1] Less than 10%