Stockholders' Equity and Benefit Plans (Details 5) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Weighted average assumptions for award grants
Excess tax benefits from stock-based compensation	$ 11,693	$ 9,980	$ 11,961
Stock options and stock appreciation rights
Weighted average assumptions for award grants
Risk-free interest rate (as a percent)	1.10%	1.10%	1.40%
Expected term	5 years 1 month 6 days	4 years 8 months 12 days	5 years 9 months 18 days
Expected volatility (as a percent)	51.10%	45.20%	50.40%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Estimated fair value per option/stock appreciation right granted (in dollars per share)	$ 56.08	$ 33.10	$ 18.60

Amount of excess tax benefit (tax deficiency) that arises when compensation cost from non-qualified equity-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) reduces (increases) net cash provided by operating activities.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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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