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Consolidated Statements of Comprehensive Income (Unaudited) Parentheticals - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Statement of Comprehensive Income [Abstract]        
Amortization of actuarial loss, tax $ 2 $ 5 $ 4 $ 10
Effect of settlements, tax effect $ 0 $ 0 $ 0 $ 32