Derivative Financial Instruments (Schedule Of Net Notional Foreign Currency Forward Contracts Outstanding) (Details) - Sep. 30, 2020 € in Thousands, ₩ in Thousands, ₨ in Thousands, ¥ in Thousands, ¥ in Thousands, £ 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)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net notional foreign currency forward contracts outstanding	$ 30,400	R$ 2,800	£ 5,200	$ 350	¥ 35,600	Kč 2,900	kr 5,650	€ 164	$ 11,400	₨ 456,000	¥ 171,000	₩ 3,073,000	$ 12,300	SFr 167,055