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Acquisitions (Schedule Of Amortization Periods For Acquired Intangible Assets) (Details)	9 Months Ended
	Sep. 30, 2013
Customer Relationships [Member]
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Identifiable Intangible Asset, Useful Life (Yrs)	10 years
Noncompete Agreements [Member]
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Identifiable Intangible Asset, Useful Life (Yrs)	2 years
Minimum [Member] | Proprietary Technology [Member]
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Identifiable Intangible Asset, Useful Life (Yrs)	6 years
Maximum [Member] | Proprietary Technology [Member]
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]
Identifiable Intangible Asset, Useful Life (Yrs)	10 years

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- Details

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Period Type:	duration

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration