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Employee Benefit Plans - Schedule of Net Pension Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Components of net pension cost        
Service cost - benefits earned during the year $ 236 $ 237 $ 710 $ 710
Interest costs on projected benefit obligations 370 357 1,108 1,071
Expected return on plan assets (590) (544) (1,769) (1,634)
Expected administrative expenses 28 28 82 86
Amortization of unrecognized net gain (173) (160) (518) (480)
Net periodic pension income $ (129) $ (82) $ (387) $ (247)