Revenue - Revenue by Geographic Region (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 28, 2019 |
Jun. 29, 2018 |
Jun. 28, 2019 |
Jun. 29, 2018 |
|
| Disaggregation of Revenue [Line Items] | ||||
| Total revenue | $ 331,589 | $ 321,132 | $ 657,517 | $ 641,649 |
| Middle East | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Total revenue | 223,588 | 219,218 | 450,004 | 439,098 |
| United States | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Total revenue | 72,376 | 74,847 | 143,786 | 148,636 |
| Europe | ||||
| Disaggregation of Revenue [Line Items] | ||||
| Total revenue | $ 35,625 | $ 27,067 | $ 63,727 | $ 53,915 |