Goodwill And Other Intangible Assets (Schedule Of Intangible Assets, Net Of Amortization) (Details) - USD ($) $ in Thousands  | 
Sep. 30, 2015  | 
Dec. 31, 2014  | 
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets, gross | $ 17,266 | $ 17,633 | 
| Less accumulated amortization | (5,970) | (5,075) | 
| Intangible assets, net | 11,296 | 12,558 | 
| Customer Lists And Relationships [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets, gross | 14,101 | 14,306 | 
| Product Technologies [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets, gross | 2,218 | 2,380 | 
| Core Technologies [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Intangible assets, gross | $ 947 | $ 947 | 
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- Definition 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 
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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