Income Taxes (Income Tax Expense From Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
U.S. federal	$ (3,298)	$ 475	$ 449
Foreign	20,238	18,204	19,311
State and local	104	168	211
Total current	17,044	18,847	19,971
Deferred:
U.S. federal	3,935	(3,832)	3,265
Foreign	(6,856)	(8,340)	(9,157)
State and local	738	1,290	(186)
Total deferred	(2,183)	(10,882)	(6,078)
Total income tax expense (benefit)	$ 14,861	$ 7,965	$ 13,893