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CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 03, 2015
Mar. 31, 2014
CONSOLIDATED STATEMENTS OF INCOME    
Discontinued operations, tax benefits $ 3us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ (48)us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation