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Restructuring and Asset Impairment - Schedule of Other Restructuring Initiatives (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 638 $ 1,077
Cost of revenue    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 585 983
Selling, general and administrative    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 53 94
Severance and Transition Costs    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 616 1,017
Severance and Transition Costs | Cost of revenue    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 563 923
Severance and Transition Costs | Selling, general and administrative    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 53 94
Asset Impairments    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 22 60
Asset Impairments | Cost of revenue    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs 22 60
Asset Impairments | Selling, general and administrative    
Restructuring Cost and Reserve [Line Items]    
Restructuring costs $ 0 $ 0