Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Mar. 31, 2021 € 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	AUD ($)	BRL (R$)	GBP (£)	CAD ($)	CNY (¥)	CZK (Kč)	DKK (kr)	EUR (€)	HKD ($)	INR (₨)	JPY (¥)	KRW (₩)	SGD ($)	CHF (SFr)	SEK (kr)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	$ 25,600	R$ 2,000	£ 10,400	$ 6,150	¥ 21,769	Kč 4,800	kr 900	€ 9,336	$ 42,050	₨ 722,000	¥ 598,000	₩ 761,000	$ 15,400	SFr 187,330	kr 6,700