v3.10.0.1
Segment and Geographical Information - Segment Reporting Information by Segment (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Segment Reporting Information [Line Items]        
Revenue [1] $ 45,966 $ 41,972 $ 93,291 $ 85,338
United States        
Segment Reporting Information [Line Items]        
Revenue 41,363 38,336 83,900 78,178
Non-US        
Segment Reporting Information [Line Items]        
Revenue $ 4,603 $ 3,636 $ 9,391 $ 7,160
[1] (1) Includes related party revenue of $705 and $432 for the three months ended June 30, 2018 and July 1, 2017, respectively. Includes related party revenue of $1,342 and $825 for the six months ended June 30, 2018 and July 1, 2017, respectively. (Note 14)