Cash, Cash Equivalents and Investments (Details 4) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012
Contractual maturity of marketable debt investments
Marketable debt securities, amortized cost, due in less than one year	$ 57,447
Marketable debt securities, amortized cost, due in one to three years	40,906
Marketable debt securities, amortized cost, total	98,353
Marketable debt securities, fair value, due in less than one year	57,491
Marketable debt securities, fair value, due in one to three years	40,974
Marketable debt securities, fair value, total	$ 98,465

Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

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+ Details