Restructuring (Details) - Severance and benefit related costs - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 26, 2015 |
Jun. 28, 2014 |
|
| Restructuring Reserve [Roll Forward] | ||
| Beginning balance | $ 750 | $ 1,274 |
| Adjustments | (21) | 0 |
| Severance and benefit related costs | 0 | 139 |
| Payments | (357) | (1,028) |
| Ending balance | $ 372 | $ 385 |