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, 2014	Sep. 30, 2013	Jun. 30, 2014 Trade Name [Member]	Dec. 31, 2013 Trade Name [Member]	Jun. 30, 2014 Technological Know-How [Member]	Dec. 31, 2013 Technological Know-How [Member]	Jun. 30, 2014 Customer-Related Intangible [Member]	Dec. 31, 2013 Customer-Related Intangible [Member]
Goodwill [Line Items]
Gross Carrying Amount	$ 162,047	$ 162,047	$ 7,900	$ 7,900	$ 43,349	$ 43,349	$ 110,798	$ 110,798
Accumulated Amortization	(67,190)	(77,414)	4,264	3,944	21,953	18,582	51,197	44,664
Net Carrying Amount	$ 94,857	$ 84,633	$ 3,636	$ 3,956	$ 21,396	$ 24,767	$ 59,601	$ 66,134