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Net Income Per Share (Details)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2014
Mar. 31, 2013
Earnings Per Share [Abstract]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Outstanding 5,855 17,831
Common Stock:    
Weighted average basic shares outstanding 381,551 392,498
Dilutive effect of stock options and restricted shares 7,801 3,196
Weighted average diluted shares outstanding 389,352 395,694