v3.7.0.1
Goodwill and Intangible Assets - Change in Goodwill (Details)
$ in Thousands
3 Months Ended
Apr. 01, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Balance as of December 31, 2016 $ 57,910
Effect of currency translation 218
Balance as of April 1, 2017 $ 58,128