XML 87 R39.htm IDEA: XBRL DOCUMENT v3.21.2
Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2021
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
Net Periodic Cost (Benefit)
Pension BenefitsOther Postretirement Benefits
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended June 30,Six Months Ended June 30,
20212020202120202021202020212020
Service cost$$$$$— $— $— $— 
Interest cost23 32 47 64 
Expected return on plan assets(51)(54)(102)(108)(1)(1)(2)(2)
Amortization of prior service credit— — — — (1)(1)(3)(3)
Amortization of actuarial loss18 15 35 30 
Net periodic cost (benefit)$(9)$(6)$(18)$(12)$1 $ $1 $1