Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Goodwill [Line Items]
Gross Carrying Amount	$ 165,567	$ 165,567
Accumulated Amortization	(58,653)	(48,274)
Net Carrying Amount	106,914	117,293
Patents [Member]
Goodwill [Line Items]
Gross Carrying Amount	3,520	3,520
Accumulated Amortization	1,729	1,617
Net Carrying Amount	1,791	1,903
Trade Name [Member]
Goodwill [Line Items]
Gross Carrying Amount	7,900	7,900
Accumulated Amortization	3,407	2,870
Net Carrying Amount	4,493	5,030
Technological Know-How [Member]
Goodwill [Line Items]
Gross Carrying Amount	43,349	43,349
Accumulated Amortization	15,568	12,554
Net Carrying Amount	27,781	30,795
Customer-Related Intangible [Member]
Goodwill [Line Items]
Gross Carrying Amount	110,798	110,798
Accumulated Amortization	37,949	31,233
Net Carrying Amount	$ 72,849	$ 79,565