Stockholders' Equity - Summary of Company's Equity Award Activity - Options (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
Sep. 28, 2013
Stock Options [Member]
Number of Options
Number of Options, Beginning Balance	9,008
Number of Options, exercised	(1,988)
Number of Options, canceled	(417)
Number of Options, Ending Balance	6,603
Number of Options, Vested and expected to vest	6,592
Number of Options, Exercisable	6,187
Average Exercise Price Per Share
Average Exercise Price Per Share, Beginning Balance	$ 7.13
Average Exercise Price Per Share, Options exercised	$ 6.53
Average Exercise Price Per Share, Options canceled	$ 7.96
Average Exercise Price Per Share, Ending Balance	$ 7.26
Average Exercise Price Per Share, Exercisable	$ 7.22
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Beginning Balance	$ 5,726
Aggregate Intrinsic Value, Options exercised	6,848
Aggregate Intrinsic Value, Ending Balance	27,954
Aggregate Intrinsic Value, Vested and expected to vest	27,916
Aggregate Intrinsic Value, Exercisable	$ 26,493

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Number of share options (or share units) exercised during the current period.

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