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Net Periodic Benefit Cost (Tables)
 3 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Net periodic benefit cost
Net periodic pension cost for the Company’s defined benefit pension plans and U.S. post-retirement medical plan includes the following components for the three months ended March 31:
 U.S. Pension BenefitsNon-U.S. Pension BenefitsOther U.S. Post-retirement BenefitsTotal
 20252024202520242025202420252024
Service cost, net$233 $397 $4,495 $4,020 $— $— $4,728 $4,417 
Interest cost on projected benefit obligations
1,201 1,192 3,551 4,479 6 7 4,758 5,678 
Expected return on plan assets
(1,428)(1,368)(10,187)(9,345)— — (11,615)(10,713)
Recognition of prior service cost— — (959)(1,161)(19)(19)(978)(1,180)
Recognition of actuarial losses/(gains)393 521 4,324 3,761 8 8 4,725 4,290 
Net periodic pension cost/(credit)$399 $742 $1,224 $1,754 $(5)$(4)$1,618 $2,492