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Retirement Plans and Other Postretirement Benefits - Projected Benefit Obligation for Pension Plans (Details) - Pension Benefits - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Projected benefit obligation and the accumulated benefit obligation for pension plans with an accumulated obligation in excess of plan assets    
Accumulated benefit obligation $ 126,759 $ 161,086
Fair value of plan assets 0 0
Projected benefit obligation 133,818 169,912
Fair value of plan assets $ 0 $ 0