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Consolidated Statements of Comprehensive Income (Unaudited) Parentheticals - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Statement of Comprehensive Income [Abstract]        
Amortization of actuarial (gain) loss, tax $ 5 $ (1) $ 10 $ (2)
Effect of settlements, tax effect $ 0 $ 0 $ 32 $ 0