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Pension and Other Post-Retirement Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost
The components of net periodic (benefit) cost related to pension and other post-retirement benefit plans is as follows:
 U.S. Pension and Other Post-Retirement Benefit PlansNon-U.S. Pension Plan
Three Months Ended March 31,Three Months Ended March 31,
 2021202020212020
Interest cost208 281 161 204 
Expected return on plan assets(553)(519)(250)(263)
Amortization of prior service cost74 14 11 
Recognized actuarial loss74 239 143 
Net (benefit) cost$(269)$(162)$164 $95