Net Income Per Share (Details) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Apr. 01, 2012
Common Stock:
Weighted average basic shares outstanding	392,498	389,701
Dilutive effect of stock options and restricted shares	3,196	2,574
Weighted average diluted shares outstanding	395,694	392,275
Potential common shares excluded from diluted per share calculation	17,831	19,312

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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+ Details