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Marketable Securities | 3 Months Ended
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Dec. 27, 2014
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | Marketable Securities The following reconciles the cost basis to the fair market value of the Company’s equity securities that are classified as available-for-sale:
Period Ended: | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
December 27, 2014 | $ | 15.5 |  |  | $ | 19.7 |  |  | $ | (5.7 | ) |  | $ | 29.5 |
September 27, 2014 | $ | 15.5 |  |  | $ | 10.2 |  |  | $ | (1.3 | ) |  | $ | 24.4 |

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