Goodwill And Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Historical Cost	$ 194,100	$ 109,603
Accumulated Amortization	(61,596)	(45,107)
Net	132,504	64,496
Weighted-Average Amortization Period, years	1 year 6 months
Trade Names [Member]
Historical Cost	50,257	10,584
Accumulated Amortization	(6,227)	(4,147)
Net	44,030	6,437
Weighted-Average Amortization Period, years	17 years 8 months 12 days	12 years 7 months 6 days
Patents And Patent Licenses [Member]
Historical Cost	44,048	38,229
Accumulated Amortization	(24,719)	(20,712)
Net	19,329	17,517
Weighted-Average Amortization Period, years	8 years 2 months 12 days	8 years 4 months 24 days
Customer Relationships [Member]
Historical Cost	86,473	49,245
Accumulated Amortization	(21,750)	(13,380)
Net	64,723	35,865
Weighted-Average Amortization Period, years	7 years	6 years 8 months 12 days
Other Purchased Intangibles [Member]
Historical Cost	13,322	11,545
Accumulated Amortization	(8,900)	(6,868)
Net	$ 4,422	$ 4,677
Weighted-Average Amortization Period, years	4 years 4 months 24 days	4 years 8 months 12 days