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Pension Plans and Other Postretirement Benefits (Tables)
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Domestic and Foreign Pension and Postretirement Defined Benefit Plans
The components of pension and postretirement benefits cost (credit) for the three-month and nine-month periods ended September 30, 2024 and 2023 were as follows (in thousands):
Three Months Ended
September 30,		Nine Months Ended
September 30,
2024202320242023
Pension Benefits Cost (Credit):
Service cost$1,576 $1,340 $4,705 $3,995 
Interest cost8,163 8,587 24,448 25,687 
Expected return on assets(8,854)(8,434)(26,522)(25,258)
Amortization of prior service benefit20 20 59 61 
Total net pension benefits cost$905 $1,513 $2,690 $4,485 
Postretirement Benefits Cost:
Service cost$12 $12 $35 $36 
Interest cost360 467 1,081 1,404 
Total net postretirement benefits cost$372 $479 $1,116 $1,440 
Total net pension and postretirement benefits cost$1,277 $1,992 $3,806 $5,925