Fair-Value Measurements (Schedule of Fair Value of Financial Assets and Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivative Asset [Abstract]
Equity securities, cost basis	$ 500	$ 500
Fair Value, Recurring | (Level 1)
Assets:
Cash equivalents	19,892	27,157
Common stock of unaffiliated foreign public company	759	682
Fair Value, Recurring | (Level 1) | Foreign currency option contracts
Assets:
Derivative asset	0	0
Fair Value, Recurring | (Level 1) | Foreign currency forward contracts
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	0	0
Fair Value, Recurring | (Level 1) | Interest rate swaps
Assets:
Derivative asset	0	0
Fair Value, Recurring | (Level 2)
Assets:
Cash equivalents	0	0
Common stock of unaffiliated foreign public company	0	0
Fair Value, Recurring | (Level 2) | Foreign currency option contracts
Assets:
Derivative asset	1,533	1,725
Fair Value, Recurring | (Level 2) | Foreign currency forward contracts
Assets:
Derivative asset	269	199
Liabilities:
Derivative liability	(160)	0
Fair Value, Recurring | (Level 2) | Interest rate swaps
Assets:
Derivative asset	$ 9,404	$ 12,214