Intangible Assets, Net and Goodwill (Summary Of Identifiable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Summary of Identifiable Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross carrying amount	$ 37,198	$ 37,198	$ 14,198
Intangible assets subject to amortization, Accumulated amortization	(10,175)	(8,888)	(5,664)
Intangible assets subject to amortization, Net carrying amount	27,023us-gaap_FiniteLivedIntangibleAssetsNet	28,310us-gaap_FiniteLivedIntangibleAssetsNet	8,534us-gaap_FiniteLivedIntangibleAssetsNet
Intangible assets not subject to amortization	115,421	115,421	27,421
Intangible assets, net	142,444	143,731	35,955
Patents And Purchased Technology [Member]
Summary of Identifiable Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross carrying amount	14,198	14,198	14,198
Intangible assets subject to amortization, Accumulated amortization	(6,994)	(6,661)	(5,664)
Customer Relationships [Member]
Summary of Identifiable Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross carrying amount	23,000	23,000	0
Intangible assets subject to amortization, Accumulated amortization	$ (3,181)	$ (2,227)	$ 0

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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