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EMPLOYEE BENEFIT PLANS
 9 Months Ended
Sep. 30, 2021
Retirement Benefits [Abstract]  
Pension and Other Postretirement Benefits Disclosure [Text Block] EMPLOYEE BENEFIT PLANS
The Company has three frozen defined benefit pension plans covering certain employees or former employees of three U.S. subsidiaries. The Company also has pension plans covering certain employees of several foreign subsidiaries. The Company also sponsors a number of defined contribution plans in the U.S. and at foreign subsidiaries. The Company contributed approximately $0.8 million to the pension plans during the nine months ended September 30, 2021, and expects to contribute approximately $0.4 million to the pension plans during the remainder of 2021.
The components of net periodic pension cost consisted of the following for the periods set forth below (amounts in thousands):
Three months endedNine months ended
September 30,September 30,
2021202020212020
Service cost$168 $200 $506 $728 
Interest cost702 857 2,115 2,595 
Expected return on assets(1,505)(1,360)(4,519)(4,078)
Amortization of unrecognized prior service cost(14)— (46)— 
Amortization of net unrecognized loss697 696 2,090 2,088 
      Net periodic pension cost$48 $393 $146 $1,333 
Service cost is recorded as cost of sales in the Condensed Consolidated Statements of Operations while all other components are recorded in other income.