Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Line Items]
Unrepatriated foreign earnings	$ 4,800
Net increase from the reevaluation of uncertain tax positions arising in examinations	100
Net decrease from the reevaluation of uncertain tax positions arising in examinations	$ 600
Income Tax Expense Benefit Estimated Tax Rate	32.60%	39.70%
Non-U.S. earnings that have been targeted for future repatriation	$ 69,700
Earliest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years	2007
Latest Tax Year [Member]
Income Tax Disclosure [Line Items]
Open tax years	2016