Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current Income Tax Expense (Benefit) [Abstract]
Federal	$ 1,267	$ 13,504	$ 7,083
State	191	270	167
Foreign	4,789	32	5,371
Current income tax provision	6,247	13,806	12,621
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	808	308	(632)
State	720	43	(351)
Foreign	(669)	(263)	(760)
Deferred income tax provision	859	88	(1,743)
Total provision for income taxes	$ 7,106	$ 13,894	$ 10,878