Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Sep. 30, 2018 € in Thousands, ₩ in Thousands, ₨ in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, kr in Thousands, SFr in Thousands, R$ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	KRW (₩)	INR (₨)	DKK (kr)	NZD ($)	GBP (£)	JPY (¥)	CNY (¥)	AUD ($)	CAD ($)	HKD ($)	BRL (R$)	SGD ($)	EUR (€)	CHF (SFr)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	₩ 370,200	₨ 558,300	kr 7,404	$ 200	£ 2,100	¥ 2,333,900	¥ 50,600	$ 15,500	$ 3,050	$ 23,400	R$ 12,300	$ 9,000	€ 6,536	SFr 19,150