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Savings Plans, Pension Plans and Other Postretirement Employee Benefits (Pension Plans with Projected Benefit Obligations Greater than Plan Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Savings Plans Pension Plans And Other Postretirement Employee Benefits [Abstract]    
Projected benefit obligations $ 232,198 $ 386,205
Fair value of plan assets $ 172,246 $ 329,796