Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Dec. 31, 2015 € 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	AUD	INR (₨)	DKK	GBP (£)	JPY (¥)	CNY (¥)	CHF (SFr)	HKD	BRL	SGD	EUR (€)	CAD
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	AUD 1,433	₨ 660,475	DKK 19,000	£ 21,510	¥ 449,015	¥ 35,000	SFr 20,400	HKD 50,813	BRL 5,700	SGD 11,629	€ 1,500	CAD 4,700