XML 51 R39.htm IDEA: XBRL DOCUMENT v3.21.2
Defined Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2021
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
September 30,
Nine Months Ended
September 30,
2021202020212020
Expected return on plan assets, net of expenses$(3,210)$(3,073)$(9,630)$(9,217)
Interest cost on projected benefit obligation835 1,252 2,506 3,757 
Net amortization and deferral1,529 1,330 4,587 3,989 
Net periodic expense (benefit)$(846)$(491)$(2,537)$(1,471)