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Defined Benefit Pension Plans
 9 Months Ended
Sep. 30, 2021
Retirement Benefits [Abstract]  
Defined Benefit Pension Plans

6. Defined Benefit Pension Plans

Net periodic cost related to all of the Company's defined benefit pension plans recognized in the Company's unaudited Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2021 and 2020 included the following components:

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

(in thousands)

 

September 30,
2021

 

 

September 30,
2020

 

 

September 30,
2021

 

 

September 30,
2020

 

Service cost

 

$

302

 

 

$

315

 

 

$

921

 

 

$

946

 

Interest cost

 

 

2,858

 

 

 

4,092

 

 

 

8,533

 

 

 

12,330

 

Expected return on assets

 

 

(6,348

)

 

 

(6,936

)

 

 

(18,968

)

 

 

(20,899

)

Amortization of actuarial loss

 

 

2,589

 

 

 

2,614

 

 

 

7,760

 

 

 

7,848

 

Net periodic (benefit) cost

 

$

(599

)

 

$

85

 

 

$

(1,754

)

 

$

225

 
For the three months ended September 30, 2021 and 2020, the non-service components of net periodic pension benefit of $(901,000) and $(230,000), respectively, are included in "Other Income (Expense), net" on the unaudited Condensed Consolidated Statement of Operations. For the nine months ended September 30, 2021 and 2020, the non-service components of net periodic pension benefit of $(2,675,000) and $(721,000), respectively, are included in "Other Income (Expense), net" on the unaudited Condensed Consolidated Statement of Operations. For the nine months ended September 30, 2021, the Company made contribution of $9,000,000 to the U.S. defined benefit pension plan and $526,000 to the U.K. defined benefit pension plans, respectively, as compared with $3,000,000 to the U.S. defined benefit pension plan and $455,000 to the U.K. defined benefit pension plans during the nine months ended September 30, 2020.