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Condensed Consolidated Statement of Comprehensive Income (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2021
Jun. 27, 2020
Jul. 03, 2021
Jun. 27, 2020
Other Comprehensive Items:        
Post-retirement liability adjustments, net, tax $ 2 $ 0 $ 12 $ 20
Deferred gain (loss) on cash flow hedges, tax $ 21 $ (3) $ 40 $ (122)