Income Taxes Federal State And Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current Federal Tax Expense (Benefit)	$ (2,405)	$ 0	$ 0
Deferred Federal Income Tax Expense (Benefit)	(212)	0	0
Current And Deferred Federal Income Tax Expense (Benefit)	(2,617)	0	0
Current State and Local Tax Expense (Benefit)	(131)	(23)	(18)
Deferred State and Local Income Tax Expense (Benefit)	0	0	0
Current And Deferred State And Local Tax Expense (Benefit)	(131)	(23)	(18)
Current Foreign Tax Expense (Benefit)	250	289	390
Deferred Foreign Income Tax Expense (Benefit)	(47)	184	(128)
Current And Deferred Foreign Tax Expense (Benefit)	203	473	262
Income Tax Expense (Benefit)	$ (2,545)	$ 450	$ 244