Financial Instruments (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt	$ 456,885	$ 439,000
Less: Current maturities of long-term debt	4,218	0
Long-term debt	452,667	439,000
Line of Credit
Debt Instrument [Line Items]
Long-term debt	$ 446,000	$ 439,000
Interest rate, effective percentage	3.49%	3.16%
Foreign Bank Debt
Debt Instrument [Line Items]
Long-term debt	$ 10,885	$ 0