Supplemental Financial Statement Information (Selected Balance Sheet Information) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Other assets:
Long-term investments	$ 250,240	$ 259,977
Other	102,120	120,442
Total	352,360	380,419
Accounts payable and accrued liabilities:
Accounts payable	282,425	315,351
Customer deposits	213,315	209,662
Employee related liabilities	240,159	216,273
Other	139,577	165,797
Total	875,476	907,083
Other noncurrent liabilities:
Pension liabilities	98,784	74,681
Postretirement medical benefits	83,222	87,745
Customer deposits	83,995	10,757
Other	48,701	54,546
Total	$ 314,702	$ 227,729

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.