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Employee Benefit Plans
 9 Months Ended
Sep. 30, 2020
Retirement Benefits [Abstract]  
Employee Benefit Plans Employee Benefit Plans
Net periodic benefit income from the Company's pension plans included the following components for the three months ended September 30:
Pension Benefits
20202019
Service cost$3,012 $2,395 
Interest cost20,942 24,362 
Expected return on plan assets(38,550)(38,551)
Amortization of prior service cost (credit)173 (17)
Amortization of actuarial loss11,130 7,752 
Net periodic benefit income$(3,293)$(4,059)
Net periodic benefit income from the Company's pension plans included the following components for the nine months ended September 30:
 Pension Benefits
 20202019
Service cost
$8,919 $7,164 
Interest cost
62,732 73,045 
Expected return on plan assets
(115,483)(115,585)
Amortization of prior service cost (credit)519 (51)
Amortization of actuarial loss
33,340 23,247 
Net periodic benefit income
$(9,973)$(12,180)
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 expenses (income). Pension benefits also include amounts related to supplemental retirement plans.