Fair-Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets, Fair Value Disclosure [Abstract]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other noncurrent liabilities	Other noncurrent liabilities
Derivative Asset [Abstract]
Equity securities, cost basis	$ 500
Fair Value, Inputs, Level 1 | Fair Value, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	6,533	$ 20,665
Common stock of unaffiliated foreign public company	602	702
Interest rate swaps	0	0
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	0	0
Fair Value, Inputs, Level 2 | Fair Value, Recurring
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Common stock of unaffiliated foreign public company	0	0
Interest rate swaps	23,605	3,328
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	$ 0	$ (5,176)