Income Taxes (Schedule of Income Tax Provision (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 1,323	$ 2,663	$ 382
State	171	75	1
Foreign	5,484	2,403	953
Current Income Tax Expense (Benefit)	6,978	5,141	1,336
Deferred:
Federal	(36)	1,891	(1,450)
State	(25)	763	(232)
Foreign	(138)	69	(653)
Deferred Income Tax Expense (Benefit)	(199)	2,723	(2,335)
Total benefit (provision) for income taxes	$ 6,779	$ 7,864	$ (999)