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Condensed Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
(Tax) benefit on reclassification adjustment of benefit plan liability - prior service cost $ 8 $ 6 $ 14 $ 15
(Tax) benefit on reclassification adjustment of benefit plan liability - net loss (68) (157) (113) (374)
Interest rate swaps        
(Tax) benefit on reclassification of net realized (gains) losses on settled/amortized derivatives (238) (150) (415) (340)
Commodity Contract        
(Tax) benefit on reclassification of net realized (gains) losses on settled/amortized derivatives 319 14 871 6
(Tax) benefit on net unrealized gains (losses) on commodity derivatives $ 734 $ (304) $ 394 $ (339)