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Acquisitions - Additional Information (Details)
$ in Thousands, € in Millions
3 Months Ended 12 Months Ended
Feb. 15, 2018
USD ($)
Feb. 15, 2018
EUR (€)
Dec. 31, 2018
USD ($)
Sep. 28, 2018
USD ($)
Jun. 29, 2018
USD ($)
Dec. 31, 2018
USD ($)
Mar. 30, 2018
Business Acquisition [Line Items]              
Goodwill     $ 11,664     $ 11,664  
Soft Company [Member]              
Business Acquisition [Line Items]              
Business acquisition, percentage acquired 100.00%           100.00%
Payments to acquire business $ 16,910 € 13.6          
Foreign currency exchange rate 1.2392            
Earn-out contingency liability, basis for amount           The Company has a contingent consideration liability related to an earn-out provision of which a portion will be payable in each period subject to the achievement by Soft Company of certain revenue and EBIT targets for fiscal 2017, 2018, and 2019. There is no payout if the achievement on either target is below a certain target threshold.  
Fair value of acquisition $ 2,000            
Earn-out contingency liability         $ 900    
Fair value of the remaining contingent consideration liability     1,500     $ 1,500  
Goodwill $ 12,720            
Decrease in goodwill     500        
Business combination acquisition related costs including fair value adjustment of earn out liability and amortization of intangible assets           2,000  
Soft Company [Member] | Selling General and Administrative Expenses [Member]              
Business Acquisition [Line Items]              
Acquisition related costs     100 $ 500      
Soft Company [Member] | Other Current Liabilities [Member]              
Business Acquisition [Line Items]              
Fair value of the remaining contingent consideration liability     1,100     1,100  
Soft Company [Member] | Other Long-Term Liabilities [Member]              
Business Acquisition [Line Items]              
Fair value of the remaining contingent consideration liability     $ 400     $ 400