Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Sep. 30, 2017 € in Thousands, ₨ in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, SGD in Thousands, SFr in Thousands, HKD in Thousands, DKK in Thousands, CAD in Thousands, BRL in Thousands, AUD in Thousands	SGD	DKK	GBP (£)	JPY (¥)	CHF (SFr)	AUD	HKD	BRL	EUR (€)	INR (₨)	CAD	CNY (¥)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	SGD 10,400	DKK 8,596	£ 5,700	¥ 2,012,317	SFr 2,030	AUD 20,770	HKD 26,000	BRL 11,870	€ 11,300	₨ 238,745	CAD 2,640	¥ 53,279