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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Statement of Comprehensive Income [Abstract]        
Actuarial gain on retirement plan, tax effect $ (5) $ (8) $ (15) $ (25)