Intangible Assets, Net and Goodwill (Schedule of Identifiable Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Summary of Identifiable Intangible Assets [Line Items]
Gross carrying amount	$ 37,198	$ 37,198
Accumulated amortization	(19,181)	(14,035)
Net carrying amount	18,017	23,163
Intangible assets not subject to amortization	115,421	115,421
Intangible assets, net	133,438	138,584
Patents And Purchased Technology [Member]
Summary of Identifiable Intangible Assets [Line Items]
Gross carrying amount	14,198	14,198
Accumulated amortization	(9,321)	(7,992)
Customer Relationships [Member]
Summary of Identifiable Intangible Assets [Line Items]
Gross carrying amount	23,000	23,000
Accumulated amortization	$ (9,860)	$ (6,043)