Summary Of Significant Accounting Policies (Notional Amounts Of Outstanding Forward Contracts) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Fair value of our forward contracts	$ 116,988	$ 124,434
Switzerland, Francs
Derivative, Notional Amount	1,200	9,678
Foreign Exchange Forward [Member] | Canada, Dollars
Derivative, Notional Amount	25,583	41,852
Foreign Exchange Forward [Member] | Euro Member Countries, Euro
Derivative, Notional Amount	61,751	50,902
Foreign Exchange Forward [Member] | United Kingdom, Pounds
Derivative, Notional Amount	14,259	0
Foreign Exchange Forward [Member] | Israel, New Shekels
Derivative, Notional Amount	6,144	3,413
Foreign Exchange Forward [Member] | Japan, Yen
Derivative, Notional Amount	0	6,496
Foreign Exchange Forward [Member] | All Other [Member]
Derivative, Notional Amount	8,051	12,093
Other Current Liabilities [Member]
Fair value of our forward contracts	$ 900	$ 400