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Employee Benefit Plans (Components of Net Periodic Benefit Cost) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 25, 2013
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Dec. 26, 2012
|
Dec. 28, 2011
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| Components of net periodic benefit cost [Abstract] | |||
| Net periodic benefit cost | $ 700 | $ 1,500 | $ 700 |
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Pension Plan [Member]
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| Components of net periodic benefit cost [Abstract] | |||
| Service cost | 400 | 380 | 335 |
| Interest cost | 2,977 | 3,200 | 3,364 |
| Expected return on plan assets | (4,488) | (4,057) | (4,182) |
| Amortization of net loss | 1,653 | 1,763 | 1,004 |
| Net periodic benefit cost | 542 | 1,286 | 521 |
| Other comprehensive (income) loss | (10,364) | 202 | 8,997 |
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Other Defined Benefit Plans [Member]
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| Components of net periodic benefit cost [Abstract] | |||
| Service cost | 0 | 0 | |
| Interest cost | 111 | 116 | 127 |
| Amortization of net loss | 71 | 52 | 32 |
| Net periodic benefit cost | 182 | 168 | 159 |
| Other comprehensive (income) loss | $ (109) | $ 175 | $ 232 |