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Employee Benefit Plans (Benefits Expected to be Paid in Future Years) (Details) (USD $)
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12 Months Ended | |
|---|---|---|
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Dec. 25, 2013
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Dec. 26, 2012
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Pension Plan [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Employer contributions | $ 2,800,000 | $ 2,767,000 |
| Estimated employer contributions during 2014 | 2,500,000 | |
| Benefits expected to be paid: | ||
| 2014 | 3,609,000 | |
| 2015 | 3,550,000 | |
| 2016 | 3,487,000 | |
| 2017 | 3,466,000 | |
| 2018 | 3,518,000 | |
| 2019 through 2023 | 19,682,000 | |
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Other Defined Benefit Plans [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Employer contributions | 195,000 | 195,000 |
| Estimated employer contributions during 2014 | 500,000 | |
| Benefits expected to be paid: | ||
| 2014 | 451,000 | |
| 2015 | 233,000 | |
| 2016 | 203,000 | |
| 2017 | 256,000 | |
| 2018 | 214,000 | |
| 2019 through 2023 | $ 1,186,000 | |