Revenue - Schedule of Amortized Commission Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 29, 2019 |
Jun. 30, 2018 |
Jun. 29, 2019 |
Jun. 30, 2018 |
|
| Revenue from Contract with Customer [Abstract] | ||||
| Amortized commission expense | $ 100 | $ 21 | $ 199 | $ 39 |