Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Dec. 31, 2019 € in Thousands, ₩ in Thousands, ₨ in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, kr in Thousands, kr in Thousands, SFr in Thousands, R$ in Thousands, Kč in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	GBP (£)	SEK (kr)	CZK (Kč)	CAD ($)	DKK (kr)	CHF (SFr)	HKD ($)	EUR (€)	JPY (¥)	AUD ($)	INR (₨)	CNY (¥)	KRW (₩)	SGD ($)	BRL (R$)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	£ 4,700	kr 6,200	Kč 18,700	$ 1,550	kr 8,900	SFr 159,884	$ 30,200	€ 9,864	¥ 473,499	$ 25,900	₨ 1,377,000	¥ 57,608	₩ 941,600	$ 17,300	R$ 400