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Condensed Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Jul. 01, 2017
Jul. 02, 2016
Other Comprehensive Items:        
Pension and other post-retirement liability adjustments, tax effect $ 11 $ 77 $ 60 $ (159)
Deferred gain (loss) on hedging instruments, tax effect $ 1 $ (151) $ 16 $ (223)