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Employee Benefit Plans
6 Months Ended
Jun. 30, 2023
Retirement Benefits [Abstract]  
Employee Benefit Plans Employee Benefit Plans
Net periodic benefit income from our pension plans included the following components for our pension benefits:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2023202220232022
Service cost$1,503 $2,586 $2,997 $5,202 
Interest cost26,136 18,849 52,253 37,716 
Expected return on plan assets(41,263)(37,646)(82,503)(75,318)
Amortization of prior service cost173 172 346 344 
Amortization of actuarial loss2,340 9,275 4,681 18,554 
Net periodic benefit income$(11,111)$(6,764)$(22,226)$(13,502)
Service cost is recorded in selling, administrative and other expenses in the Condensed Consolidated Statements of Income while all other components are recorded within other non-operating expense (income). Pension benefits also include amounts related to supplemental retirement plans.