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Venture Capital Investments and Marketable Securities - Additional Information (Details) - USD ($) | 3 Months Ended
--- | ---
Apr. 01, 2017 | Mar. 26, 2016
Schedule of Equity Method Investments [Line Items] |  |
Committed contribution | $ 84,800,000 |
Venture capital investments | 42,000,000 |
Dividends received | 4,400,000 | $ 0
Gain (loss) from venture capital investments | $ 4,200,000 | $ 3,100,000
Minimum |  |
Schedule of Equity Method Investments [Line Items] |  |
Ownership percentage | 0.70% |
Maximum |  |
Schedule of Equity Method Investments [Line Items] |  |
Ownership percentage | 12.00% |

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