Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 45,224	$ 45,356
Accumulated Amortization	(26,442)	(25,723)
Net Carrying Amount	18,782us-gaap_FiniteLivedIntangibleAssetsNet	19,633us-gaap_FiniteLivedIntangibleAssetsNet
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	33,056	33,188
Accumulated Amortization	(16,813)	(16,099)
Net Carrying Amount	16,243	17,089
Technology Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,300	11,300
Accumulated Amortization	(9,434)	(9,434)
Net Carrying Amount	1,866	1,866
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	868	868
Accumulated Amortization	(195)	(190)
Net Carrying Amount	$ 673	$ 678

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

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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