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Customers That Accounted for at Least Ten percent of Accounts Receivable (Detail) - Accounts Receivable - Credit Concentration Risk
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Seagate Technology    
Concentration Risk [Line Items]    
Concentration risk, percentage 55.00% [1]
U.S. Government    
Concentration Risk [Line Items]    
Concentration risk, percentage [1] 11.00%
HGST    
Concentration Risk [Line Items]    
Concentration risk, percentage 10.00% 37.00%
Western Digital    
Concentration Risk [Line Items]    
Concentration risk, percentage [1] 15.00%
[1] Less than 10%