Goodwill and Other Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Beginning balance	$ 53,065	$ 54,612
Currency translation	(1,392)	(1,547)
Ending balance	$ 51,673	$ 53,065