Income Taxes (Earnings Before Income Taxe Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes [Abstract]
U.S.	$ 7,961	$ 18,709	$ 13,854
Foreign	36,940	24,082	56,089
Income before income taxes	$ 44,901	$ 42,791	$ 69,943