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Cash, Cash Equivalents and Investments (Details 2) (USD $) In Thousands, unless otherwise specified | Dec. 28, 2013 | Dec. 29, 2012
--- | --- | ---
Continuous unrealized loss position, Fair Value |  |
Fair value of available-for-sale securities, continuous loss position for less than twelve months | $ 13,684 | $ 26,695
Fair value of available-for-sale securities, continuous loss position for twelve months or longer | 10,632 | 11,369
Total fair value of available-for-sale securities, continuous loss position | 24,316 | 38,064
Continuous unrealized loss position, Gross Unrealized Losses |  |
Available-for-sale securities, continuous loss position for less than 12 months, gross unrealized losses | (15) | (12)
Available-for-sale securities, continuous loss position for 12 months or greater, gross unrealized losses | (1,793) | (1,156)
Available-for-sale securities, total gross unrealized losses | (1,808) | (1,168)
Cost |  |
Due in one year or less, Cost | 115,109 |
Due after one year through ten years, Cost | 80,987 |
Due after ten years, Cost | 45,950 |
Total Cost | 242,046 |
Fair Value |  |
Due in one year or less, Fair Value | 115,177 |
Due after one year through ten years, Fair Value | 81,147 |
Due after ten years, Fair Value | 44,157 |
Total Fair Value | 240,481 |
Municipal bonds |  |
Continuous unrealized loss position, Fair Value |  |
Fair value of available-for-sale securities, continuous loss position for less than twelve months | 11,079 | 17,152
Total fair value of available-for-sale securities, continuous loss position | 11,079 | 17,152
Continuous unrealized loss position, Gross Unrealized Losses |  |
Available-for-sale securities, continuous loss position for less than 12 months, gross unrealized losses | (11) | (7)
Available-for-sale securities, total gross unrealized losses | (11) | (7)
Auction rate securities |  |
Continuous unrealized loss position, Fair Value |  |
Fair value of available-for-sale securities, continuous loss position for twelve months or longer | 10,632 | 11,369
Total fair value of available-for-sale securities, continuous loss position | 10,632 | 11,369
Continuous unrealized loss position, Gross Unrealized Losses |  |
Available-for-sale securities, continuous loss position for 12 months or greater, gross unrealized losses | (1,793) | (1,156)
Available-for-sale securities, total gross unrealized losses | (1,793) | (1,156)
Corporate bonds |  |
Continuous unrealized loss position, Fair Value |  |
Fair value of available-for-sale securities, continuous loss position for less than twelve months | 2,605 | 9,543
Total fair value of available-for-sale securities, continuous loss position | 2,605 | 9,543
Continuous unrealized loss position, Gross Unrealized Losses |  |
Available-for-sale securities, continuous loss position for less than 12 months, gross unrealized losses | (4) | (5)
Available-for-sale securities, total gross unrealized losses | $ (4) | $ (5)

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- Definition This item represents debt securities, at cost, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments, as defined), and fair value hedge accounting adjustments, if any, which are expected to mature after one year and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor as trading securities. + References No definition available. + Details
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