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Net Income Per Common Share (Narrative) (Details)
In Millions, unless otherwise specified
3 Months Ended
Apr. 03, 2015
Mar. 28, 2014
Net Income Per Common Share [Abstract]    
Antidilutive common share equivalents 0.6us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.4us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount