Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 26, 2015 |
Jun. 28, 2014 |
Jun. 26, 2015 |
Jun. 28, 2014 |
Dec. 31, 2014 |
|
| Income Tax Disclosure [Abstract] | |||||
| Income tax expense | $ 3,388 | $ 3,317 | $ 6,182 | $ 9,660 | |
| Effective income tax rate | 36.00% | 35.10% | 36.00% | 35.70% | |
| Federal statutory rate | 35.00% | 35.00% | 35.00% | 35.00% | |
| Unrecognized tax benefits | $ 7,600 | $ 7,600 | $ 7,600 | ||
| Anticipated unrecognized tax benefits that would affect effective tax rate | $ 6,900 | $ 6,900 | |||