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Acquisitions - Additional Information (Details)
$ in Thousands, € in Millions
3 Months Ended 6 Months Ended
Feb. 06, 2019
USD ($)
Feb. 15, 2018
USD ($)
Feb. 15, 2018
EUR (€)
Jun. 28, 2019
USD ($)
Jun. 29, 2018
USD ($)
Jun. 28, 2019
USD ($)
Feb. 06, 2019
EUR (€)
Tech-IT PSF S.A. [Member]              
Business Acquisition [Line Items]              
Business acquisition, percentage acquired 100.00%           100.00%
Payments to acquire business $ 9,700            
Foreign currency exchange rate 1.1225           1.1225
Earn-out contingency liability, basis for amount           An earn-out of up to a maximum of $1.7 million (€1.5 million based on a EUR into USD exchange rate of 1.1225) can be earned, a portion of which will be payable in each period subject to the achievement of direct profit targets for fiscal 2018, 2019, and 2020.  There is no payout if the achievement is below the target threshold.  
Tech-IT PSF S.A. [Member] | Maximum [Member]              
Business Acquisition [Line Items]              
Earn-out contingency liability $ 1,700           € 1.5
Soft Company [Member]              
Business Acquisition [Line Items]              
Business acquisition, percentage acquired   100.00%   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       $ 1,900   $ 1,900  
Business combination acquisition related costs including fair value adjustment of earn out liability and amortization of intangible assets       $ 500   900  
Soft Company [Member] | Selling General and Administrative Expenses [Member]              
Business Acquisition [Line Items]              
Acquisition related costs           $ 500