Leases - Schedule of Capital Lease Obligations (Details) - USD ($) $ in Thousands |
Jun. 26, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Capital Lease Obligations [Abstract] | ||
| Total | $ 679 | $ 923 |
| Other accrued liabilities | ||
| Capital Lease Obligations [Abstract] | ||
| Other accrued liabilities | 365 | 380 |
| Other long-term liabilities | ||
| Capital Lease Obligations [Abstract] | ||
| Other long-term liabilities | $ 314 | $ 543 |