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RETIREMENT AND DEFERRED COMPENSATION PLANS
 3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
RETIREMENT AND DEFERRED COMPENSATION PLANS RETIREMENT AND DEFERRED COMPENSATION PLANS
Effective January 1, 2021, our domestic noncontributory retirement plans were amended to provide that no individual who became an employee after December 31, 2020 could become a participant and that no employee whose employment terminated and who was rehired after December 31, 2020 may accrue benefits under the plan with respect to the period of employment which begins on the date that reemployment commences. These employees will instead be eligible for additional contribution to their defined contribution 401(k) employee savings plan. All domestic employees with hire/rehire dates prior to January 1, 2021 will still be eligible for the domestic pension plans and will still continue to accrue plan benefits after this date.

Components of Net Periodic Benefit Cost:
Domestic PlansForeign Plans
Three Months Ended March 31,2021202020212020
Service cost$4,227 $3,577 $2,078 $1,768 
Interest cost1,611 1,987 218 340 
Expected return on plan assets(3,073)(3,422)(723)(634)
Amortization of net loss2,503 1,548 589 514 
Amortization of prior service cost— — 45 97 
Net periodic benefit cost$5,268 $3,690 $2,207 $2,085 
The components of net periodic benefit cost, other than the service cost component, are included in the line Miscellaneous, net in the Condensed Consolidated Statements of Income.
EMPLOYER CONTRIBUTIONS
We currently have no minimum funding requirements for our domestic and foreign plans. There were no payments to our ongoing domestic supplemental executive retirement plan (SERP) annuity contracts during the three months ended March 31, 2021 and we do not expect additional significant payments during 2021. We have contributed approximately $1.0 million to our foreign defined benefit plans during the three months ended March 31, 2021 and do not expect additional significant contributions during 2021.