Stock-Based Compensation (Stock Option Activity) (Details) - Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jan. 03, 2017	Dec. 29, 2015	Dec. 30, 2014
Options, Outstanding
Outstanding, beginning of period	3,067,408	3,245,264	3,309,872
Granted	117,000	921,825	269,552
Forfeited	(505,182)	(307,318)	(73,673)
Exercised	(104,294)	(792,363)	(260,487)
Outstanding, end of period	2,574,932	3,067,408	3,245,264
Vested and expected to vest	2,530,517
Exercisable	2,000,777
Weighted Average Exercise Price
Weighted- average exercise price, beginning balance (USD per share)	$ 13.08	$ 12.17	$ 10.59
Granted (USD per share)	8.34	14.55	30.40
Forfeited (USD per share)	16.55	18.76	19.72
Exercised (USD per share)	9.13	8.86	8.85
Weighted- average exercise price, ending balance (USD per share)	12.34	$ 13.08	$ 12.17
Vested and expected to vest (USD per share)	12.29
Exercisable (USD per share)	$ 11.70
Weighted- Average Remaining Years of Contractual Life
Outstanding	3 years 10 months 10 days
Vested and expected to vest	3 years 9 months 7 days
Exercisable	2 years 6 months
Aggregate Intrinsic Value
Outstanding	$ 0
Vested and expected to vest	0
Exercisable	$ 0

Share-based Compensation Arrangement by Share-based Payment Award, Options, Intrinsic Value [Abstract]

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]

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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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-Publisher FASB
-Name Accounting Standards Codification
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Gross number of share options (or share units) granted during the period.

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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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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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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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