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Earnings per Share - Narrative (Details) (Restricted Stock Units (RSUs) [Member])
In Thousands, unless otherwise specified
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Restricted Stock Units (RSUs) [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Amount of antidilutive securities excluded from computation of EPS 46us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockUnitsRSUMember
57us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockUnitsRSUMember