v2.4.0.6

Stock-Based Compensation (Details Textual) (USD $)	0 Months Ended		1 Months Ended	12 Months Ended				0 Months Ended	12 Months Ended				1 Months Ended	12 Months Ended
	Feb. 22, 2010	Nov. 30, 2008	Dec. 27, 2008	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Dec. 29, 2012 Stock Options [Member]	Nov. 21, 2011 Restricted Stock Units (RSUs) [Member]	Dec. 29, 2012 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2011 Restricted Stock Units (RSUs) [Member]	Dec. 29, 2012 Maximum [Member] Restricted Stock Units (RSUs) [Member]	Dec. 29, 2012 Minimum [Member] Restricted Stock Units (RSUs) [Member]	Aug. 31, 2011 2005 Equity Incentive Plan [Member]	Dec. 29, 2012 2005 Equity Incentive Plan [Member]
Stock Based Compensation (Textual) [Abstract]
RSUs granted								286,180	51,777	315,472				103,554
Period of vesting	4 years		3 years								3 years	1 year
Unrecognized compensation costs							$ 6,000,000		$ 3,000,000
Weighted average remaining amortization period for unrecognized compensation costs							2 years 3 months 18 days		1 year 10 months 2 days
Initial vesting percentage	25.00%	33.33%						10.00%
Option term			7 years
Additional shares authorized													2,000,000
Vesting percentage	2.78%		33.33%					33.33%
Shares per unit granted									2
Stock Based Compensation (Additional Textual) [Abstract]
Estimated forfeiture rate				7.60%	6.30%	8.60%
Excess tax benefit				910,000	3,915,000	801,000
Weighted average fair value per share of stock options				$ 10.00	$ 9.98	$ 6.42
Closing stock price of options				$ 14.32
Intrinsic value of options exercised				4,900,000	11,600,000	6,200,000
Fair value of options vested				$ 3,600,000	$ 2,900,000	$ 2,800,000

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Period of issuance of restricted stock

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Share based compensation arrangements by share based payment award options share closing price.

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of excess tax benefit (tax deficiency) that arises when compensation cost from non-qualified share-based compensation recognized on the entity's tax return exceeds (is less than) compensation cost from equity-based compensation recognized in financial statements. Excess tax benefit (tax deficiency) increases (decreases) net cash provided by financing activities.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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