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Restructuring Charges - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Jan. 02, 2016
Restructuring Cost and Reserve [Line Items]        
Employee termination benefit costs, pretax $ 232   $ 5,993  
Employee termination benefit costs, after tax 142   3,656  
Liability for restructuring   $ 701   $ 1,809
Payments   1,036    
Provision   $ 72    
Cost of Revenues        
Restructuring Cost and Reserve [Line Items]        
Employee termination benefit costs, pretax (311)   1,698  
Selling, General and Administrative Expenses        
Restructuring Cost and Reserve [Line Items]        
Employee termination benefit costs, pretax $ 543   $ 4,295