Earnings Per Share (Reconciliation Of The Numerators And The Denominators Of The Basic And Diluted Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 30, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Income available to common shareholders, basic	$ 110,040	$ 88,708
Income available to common shareholders including assumed conversions, diluted	$ 110,040	$ 88,708
Basic weighted average shares outstanding	172,032	169,968
Stock options and non-vested shares, incremental shares	4,381	5,059
Diluted weighted average shares outstanding	176,413	175,027
Basic earnings per share	$ 0.64	$ 0.52
Diluted earnings per share	$ 0.62	$ 0.51

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- 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.

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- 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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-Glossary Weighted-Average Number of Common Shares Outstanding

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