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Condensed Consolidated Statements 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
Condensed Consolidated Statements Of Comprehensive Income (Unaudited) [Abstract]        
Tax portion of unrealized gain (loss) on qualifying cash flow hedges $ (1,140) $ 4,031 $ (6,316) $ (3,249)
Tax portion of unrecognized income from pension and postretirement plans $ (1,566) $ (1,794) $ (3,615) $ (3,066)