Retirement Plans and Other Postretirement Benefits - Amounts Recognized on the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amounts recognized on the Consolidated Balance Sheets
Noncurrent asset	$ 396,599	$ 545,723
Pension Benefits
Amounts recognized on the Consolidated Balance Sheets
Noncurrent asset	153,773	265,129
Current liability	(17,531)	(17,047)
Noncurrent liability	(116,286)	(152,865)
Net amount recognized (funded status)	19,956	95,217
Other Benefits
Amounts recognized on the Consolidated Balance Sheets
Noncurrent asset	242,826	280,594
Current liability	0	0
Noncurrent liability	0	0
Net amount recognized (funded status)	$ 242,826	$ 280,594

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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