XML 70 R59.htm IDEA: XBRL DOCUMENT v3.25.2
RETIREMENT PLANS - Net Periodic Pension Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Pension benefits        
Components of the plan's net periodic pension cost        
Service cost $ 20 $ 22 $ 40 $ 45
Interest cost 795 824 1,591 1,649
Expected return on plan assets (749) (729) (1,500) (1,459)
Amortization of unrecognized actuarial gain (44) (11) (87) (21)
Net periodic pension expense (benefit) 22 106 44 214
Postretirement benefits        
Components of the plan's net periodic pension cost        
Service cost 19 16 38 33
Interest cost 49 45 98 90
Amortization of unrecognized actuarial gain (14) (28) (27) (56)
Net periodic pension expense (benefit) $ 54 $ 33 $ 109 $ 67