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Postretirement Plans (Tables)
9 Months Ended
Sep. 30, 2021
Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost
The components of net periodic benefit (income)/cost were as follows:
Nine months ended September 30Three months ended September 30
Pension Plans2021202020212020
Service cost$2 $2 $1 
Interest cost1,493 1,841 $498 613 
Expected return on plan assets(2,894)(2,816)(963)(938)
Amortization of prior service credits(60)(60)(20)(20)
Recognized net actuarial loss924 774 304 258 
Settlement charge156 152 
Net periodic benefit income($379)($253)($29)($83)
Net periodic benefit cost included in Earnings/(loss) from operations$2 $2 $1 
Net periodic benefit income included in Other income, net(381)(255)($29)(84)
Net periodic benefit income included in Loss before income taxes($379)($253)($29)($83)
Other Postretirement Benefits Plan  
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost
Nine months ended September 30Three months ended September 30
Other Postretirement Plans2021202020212020
Service cost$66 $65 $22 $22 
Interest cost68 107 23 35 
Expected return on plan assets(6)(6)(3)(1)
Amortization of prior service credits(26)(29)(9)(12)
Recognized net actuarial gain(52)(33)(17)(10)
Settlement charge(2)(2)
Net periodic benefit cost$50 $102 $16 $32 
Net periodic benefit cost included in Earnings/(loss) from operations$66 $67 $22 $23 
Net periodic benefit (income)/cost included in Other income, net(16)37 (6)10 
Net periodic benefit cost included in Loss before income taxes$50 $104 $16 $33