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Investments in Limited Partnerships and Marketable Securities | 9 Months Ended
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Sep. 26, 2015
Marketable Securities and Equity-Method Affiliates [Abstract] |
INVESTMENTS IN LIMITED PARTNERSHIPS AND MARKETABLE SECURITIES | INVESTMENTS IN LIMITED PARTNERSHIPS AND MARKETABLE SECURITIES Investments in Limited Partnerships The Company invests in several venture capital limited partnerships that invest in start-up companies primarily in the life sciences industry. The Company’s ownership interest in these limited partnerships ranges from 3.6% to 12.0%. The Company accounts for such investments under the equity method of accounting. The Company’s total commitment to these entities as of September 26, 2015 was $65.0 million, of which the Company had funded $26.3 million through September 26, 2015. During the three and nine months ended September 26, 2015, the Company received dividends totaling $5.3 million and $7.3 million, respectively. During the three months ended September 27, 2014, the Company did not receive any dividends. During the nine months ended September 27, 2014, the Company received dividends totaling $7.4 million. The Company recognized a gain of $3.2 million and a loss of $0.8 million related to these investments for the three months ended September 26, 2015 and September 27, 2014, respectively. Marketable Securities The following is a summary of the Company's marketable securities, all of which are classified as available-for-sale:
| September 26, 2015
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
| (in thousands)
Mutual fund | $ | 4,650 |  |  | $ | — |  |  | $ | (80 | ) |  | $ | 4,570 |
Total | $ | 4,650 |  |  | $ | — |  |  | $ | (80 | ) |  | $ | 4,570 |
There were no sales of available-for-sale securities during the nine months ended September 26, 2015.

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