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Pension and Other Post-Retirement Benefits (Tables)
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Schedule of net periodic costs for the defined benefit pension plans and the post retirement healthcare plans
The following table sets forth the net periodic costs for the defined benefit pension plans and post-retirement healthcare plans for the periods indicated (in thousands):
 Quarter ended March 31,
 Pension benefitsOther post-retirement benefits
 2024202320242023
Service cost$1,425 1,560 — — 
Interest cost2,205 2,245 15 
Expected return on plan assets(3,776)(3,479)— — 
Amortization of prior service cost(563)(564)— — 
Amortization of the net loss18 20 10 10 
Net periodic cost$(691)(218)25 17