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Net Periodic Benefit Cost
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
NET PERIODIC BENEFIT COST NET PERIODIC PENSION 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 September 30:
 U.S. Pension BenefitsNon-U.S. Pension BenefitsOther U.S. Post-retirement BenefitsTotal
 20242023202420232024202320242023
Service cost, net$397 $287 $4,040 $3,467 $— $— $4,437 $3,754 
Interest cost on projected benefit obligations
1,192 1,256 4,503 4,965 7 7 5,702 6,228 
Expected return on plan assets(1,368)(1,383)(9,394)(8,746)— — (10,762)(10,129)
Recognition of prior service cost
— — (1,167)(1,074)(18)(19)(1,185)(1,093)
Recognition of actuarial losses/(gains)
521 548 3,782 2,591 8 — 4,311 3,139 
Net periodic pension cost/(credit)
$742 $708 $1,764 $1,203 $(3)$(12)$2,503 $1,899 

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 nine months ended September 30:
 U.S. Pension BenefitsNon-U.S. Pension BenefitsOther U.S. Post-retirement BenefitsTotal
 20242023202420232024202320242023
Service cost, net$1,191 $866 $11,952 $10,288 $— $— $13,143 $11,154 
Interest cost on projected benefit obligations
3,575 3,767 13,352 14,757 20 22 16,947 18,546 
Expected return on plan assets(4,104)(4,149)(27,789)(25,958)— — (31,893)(30,107)
Recognition of prior service cost— — (3,448)(3,184)(56)(57)(3,504)(3,241)
Recognition of actuarial losses/(gains)1,562 1,644 11,181 7,689 24 (1)12,767 9,332 
Net periodic pension cost/(credit)$2,224 $2,128 $5,248 $3,592 $(12)$(36)$7,460 $5,684 
As previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2023, the Company expects to make employer contributions of approximately $27.3 million to its non-U.S. pension plans during the year ended December 31, 2024. This estimate may change based upon several factors, including fluctuations in currency exchange rates, actual returns on plan assets and changes in legal requirements.