v3.7.0.1
Goodwill and Intangible Assets - Change in Goodwill (Details)
$ in Thousands
6 Months Ended
Jul. 01, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Balance as of December 31, 2016 $ 57,910
Effect of currency translation 1,470
Balance as of July 1, 2017 $ 59,380