v3.26.1
POSTRETIREMENT BENEFIT PLANS (Tables)
6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Components of Net Benefit Costs
The components of benefit plans cost other than the service cost are included in the caption Non-operating benefit costs in our Statement of Operations.
PRINCIPAL PENSION PLANSThree months ended June 30Six months ended June 30
2026202520262025
Service cost for benefits earned$13 $14 $25 $33 
Prior service cost amortization(1)(3)(2)(5)
Expected return on plan assets(358)(375)(717)(750)
Interest cost on benefit obligations310 326 620 651 
Net actuarial gain amortization(110)(125)(219)(253)
Net periodic expense (income)$(146)$(163)$(293)$(324)