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Restructuring Costs - Summary of Changes in Accrued Restructuring Costs (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]    
Beginning balance $ 203  
Provision (reversal) 770 $ 0
Usage (478)  
Currency translation (1)  
Ending balance 494  
Employee Severance [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 203  
Provision (reversal) (3)  
Usage 0  
Currency translation (1)  
Ending balance 199  
Employee Relocation [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 0  
Provision (reversal) 563  
Usage (358)  
Currency translation 0  
Ending balance 205  
Other Restructuring [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 0  
Provision (reversal) 210  
Usage (120)  
Currency translation 0  
Ending balance $ 90