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Defined Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2022
Retirement Benefits [Abstract]  
Net Periodic Cost (Benefit)
The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below.
Three Months Ended
March 31,
20222021
Expected return on plan assets, net of expenses$(3,491)$(3,210)
Interest cost on projected benefit obligation1,004 835 
Net amortization and deferral741 1,529 
Net periodic expense (benefit)$(1,746)$(846)