Equity-Based Compensation - Schedule of compensation expense recognized (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 01, 2015 |
Jun. 25, 2014 |
Jul. 01, 2015 |
Jun. 25, 2014 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Equity-based compensation expense | $ 1,178 | $ 42 | $ 14,337 | $ 83 |
| Unit appreciation rights | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Equity-based compensation expense | 0 | 0 | 11,762 | 0 |
| Restricted Class B units | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Equity-based compensation expense | 0 | 42 | 605 | 83 |
| Stock options | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Equity-based compensation expense | $ 1,178 | $ 0 | $ 1,970 | $ 0 |