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Share-Based Compensation (Restricted Stock) (Details) (Performance Shares [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 25, 2013
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Dec. 26, 2012
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Dec. 28, 2011
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Performance Shares [Member]
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| Units [Roll Forward]: | |||
| Outstanding, beginning of year (shares) | 933 | 1,276 | 1,450 |
| Granted (shares) | 331 | 397 | 416 |
| Vested (shares) | (430) | (445) | (535) |
| Forfeited (shares) | (2) | (295) | (55) |
| Outstanding, end of year (shares) | 832 | 933 | 1,276 |
| Weighted-Average Grant Date Fair Value [Roll Forward]: | |||
| Outstanding, beginning of year (US$ per share) | $ 4.30 | $ 3.19 | $ 2.92 |
| Granted (US$ per share) | $ 8.05 | $ 6.05 | $ 3.99 |
| Vested (US$ per share) | $ 2.83 | $ 3.28 | $ 3.07 |
| Forfeited (US$ per share) | $ 4.63 | $ 3.37 | $ 3.42 |
| Outstanding, end of year (US$ per share) | $ 6.55 | $ 4.30 | $ 3.19 |