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Defined Benefit Plans (Tables)
6 Months Ended
Jun. 30, 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
June 30,
Six Months Ended
June 30,
2022202120222021
Expected return on plan assets, net of expenses$(3,492)$(3,210)$(6,983)$(6,420)
Interest cost on projected benefit obligation1,004 836 2,008 1,671 
Net amortization and deferral741 1,529 1,482 3,058 
Net periodic expense (benefit)$(1,747)$(845)$(3,493)$(1,691)