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Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Statement of Comprehensive Income [Abstract]        
Unrealized (loss) on available for sale securities, deferred income tax $ 280 $ (517) $ (200) $ 275
Changes in benefit obligations and plan assets for post retirement benefit plans, deferred income taxes $ 0 $ 0 $ 1 $ (3)