Debt - Schedule of Contractual Payments of Long-Term Debt (Detail) - USD ($) $ in Thousands |
Mar. 28, 2015 |
Dec. 27, 2014 |
Dec. 28, 2013 |
|---|---|---|---|
| Debt Disclosure [Abstract] | |||
| 2015 | $ 5,275 | ||
| 2015 (nine months) | $ 4,220 | ||
| 2016 | 4,220 | 4,220 | |
| 2017 | 4,220 | 4,220 | |
| 2018 | 3,165 | 3,165 | |
| 2019 | 398,790 | 398,790 | |
| 2020 | 625,000 | 625,000 | |
| Total | 1,039,615 | 1,040,670 | |
| Plus: Original issue net premium | 23,078 | 24,247 | |
| Total debt | $ 1,062,693 | $ 1,064,917 | $ 662,987 |