XML 74 R63.htm IDEA: XBRL DOCUMENT v3.24.3
Pension and Other Postretirement Benefits Plans - The Components of the Net Pension (Benefit) Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Employee Pension Plan [Member]        
Interest cost $ 193 $ 203 $ 581 $ 609
Expected return on plan assets (284) (278) (852) (832)
Net postretirement benefit expense (91) (75) (271) (223)
Directors' Plan [Member]        
Service cost 2 2 6 6
Interest cost 11 15 33 44
Amortization of unrecognized loss (38) (40) (114) (120)
Net postretirement benefit expense (25) (23) (75) (70)
Other Post Retirement Benefit Plan Defined Benefit [Member]        
Service cost 41 40 125 120
Interest cost 96 95 288 286
Amortization of unrecognized loss (54) (60) (162) (180)
Net postretirement benefit expense $ 83 $ 75 $ 251 $ 226