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Investments in Limited Partnerships and Marketable Securities (Tables) | 3 Months Ended
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Mar. 28, 2015
Marketable Securities and Equity-Method Affiliates [Abstract] |
Schedule of Available-for-sale Securities Reconciliation | The following is a summary of the Company's marketable securities, all of which are classified as available-for-sale:
| March 28, 2015
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (in thousands)
Mutual fund | $ | 4,650 |  |  | $ | 16 |  |  | $ | — |  |  | $ | 4,666 |
Total | $ | 4,650 |  |  | $ | 16 |  |  | $ | — |  |  | $ | 4,666 |

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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