Financial Commitments (Long-Term Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total debt	$ 676,437	$ 899,745
Less: current maturities	18,602	117,431
Long-term debt, net	657,835	782,314
Term Loan B
Debt Instrument [Line Items]
Total debt	266,369	357,744
Less: current maturities		91,000
Equipment financing and mortgages
Debt Instrument [Line Items]
Total debt	31,724	34,807
Other indebtedness
Debt Instrument [Line Items]
Total debt	2,112	8,784
Revolver
Debt Instrument [Line Items]
Total debt	0	0
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Total debt	0	498,410
2024 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Total debt	$ 376,232	$ 0