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Condensed Consolidated Statement of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Other Comprehensive Items:        
Pension and other post-retirement liability adjustments, tax effect $ 2 $ 75 $ 10 $ 109
Deferred benefit on cash flow hedges, tax effect $ 39 $ 55 $ 143 $ 47