Income Taxes (Income Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
U.S. income	$ (6,128)	$ 18,119	$ 12,374
Foreign income	25,503	27,025	34,301
Income before income taxes	$ 19,375	$ 45,144	$ 46,675