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Employee Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2025
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Income for the Pension Plans
Net periodic benefit income from our pension plans included the following components for our pension benefits:
Three Months Ended September 30,Nine Months Ended September 30,
(in thousands)2025202420252024
Service cost$1,590 $1,718 $4,691 $5,156 
Interest cost22,951 25,335 68,711 76,024 
Expected return on plan assets(29,245)(44,352)(87,550)(133,095)
Amortization of prior service cost285 281 855 843 
Amortization of actuarial loss4,618 3,564 13,859 10,698 
Net periodic loss (income)$199 $(13,454)$566 $(40,374)