Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Sep. 28, 2017 |
Sep. 29, 2016 |
Sep. 28, 2017 |
Sep. 29, 2016 |
Dec. 29, 2016 |
Dec. 31, 2015 |
Dec. 25, 2014 |
|
| Statement of Comprehensive Income [Abstract] | |||||||
| Net income | $ 23,255 | $ 14,219 | $ 54,812 | $ 26,332 | $ 43,039 | $ 26,807 | $ 15,098 |
| Other comprehensive loss-change in fair value of hedge instruments, net of tax | (121) | 44 | (887) | 67 | 276 | 43 | 14 |
| Total comprehensive income | $ 23,134 | $ 14,263 | $ 53,925 | $ 26,399 | $ 43,315 | $ 26,850 | $ 15,112 |