Income Taxes (Summary Of Income Tax Examinations Years) (Details)	12 Months Ended
	Sep. 30, 2012
United States [Member]
Income Tax Contingency [Line Items]
Income tax years subject to examination	2009 through 2012
Germany [Member]
Income Tax Contingency [Line Items]
Income tax years subject to examination	2007 through 2012
France [Member]
Income Tax Contingency [Line Items]
Income tax years subject to examination	2009 through 2012
Japan [Member]
Income Tax Contingency [Line Items]
Income tax years subject to examination	2006 through 2012
Ireland [Member]
Income Tax Contingency [Line Items]
Income tax years subject to examination	2008 through 2012