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Shares Excluded Underlying Stock Based Award from Calucations of Diluted EPS (Detail)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares excluded from calculations of diluted EPS 1,550 1,436 1,550 1,435