Goodwill And Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Historical Cost	$ 416,494	$ 282,868
Accumulated Amortization	(137,505)	(92,146)
Net	278,989us-gaap_FiniteLivedIntangibleAssetsNet	190,722us-gaap_FiniteLivedIntangibleAssetsNet
Trade Names [Member]
Historical Cost	94,770	66,911
Accumulated Amortization	(16,598)	(11,182)
Net	78,172	55,729
Weighted-Average Amortization Period, years	14 years 6 months	17 years
Patents And Patent Licenses [Member]
Historical Cost	62,940	58,446
Accumulated Amortization	(38,013)	(29,916)
Net	24,927	28,530
Weighted-Average Amortization Period, years	9 years	8 years 1 month 6 days
Customer Contracts [Member]
Historical Cost	230,424	139,362
Accumulated Amortization	(66,658)	(38,382)
Net	163,766	100,980
Weighted-Average Amortization Period, years	9 years 3 months 18 days	8 years 1 month 6 days
Other Purchased Intangibles [Member]
Historical Cost	28,360	18,149
Accumulated Amortization	(16,236)	(12,666)
Net	$ 12,124	$ 5,483
Weighted-Average Amortization Period, years	4 years 3 months 18 days	5 years

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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- Definition

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

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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

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