Details of Certain Consolidated Balance Sheet Captions (Retirement Obligations and Other Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Details of Certain Consolidated Balance Sheet Captions [Abstract]
Pension and postretirement benefits	$ 195,436	$ 202,583
Deferred taxes	1,775	1,335
Operating lease liabilities	149,838	138,665
Legal and environmental	99,984	93,989
Uncertain tax positions and other tax liabilities	40,172	51,584
Other	33,688	39,629
Retirement obligations and other liabilities	$ 371,055	$ 389,120

Details of Certain Consolidated Balance Sheet Captions [Abstract]

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For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various post employment and postretirement benefits provided to former or inactive employees, their beneficiaries, and covered dependents that is payable after one year (or beyond the operating cycle if longer. Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet due to materiality considerations. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

+ References

No definition available.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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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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