Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 61	$ 50
Loss before provision for income taxes	$ 3,835	$ 1,250
Federal net operating loss			$ 182,500
State net operating loss			97,100
Foreign net operating loss			$ 97,400