Derivative Financial Instruments (Notional Amounts Of Outstanding Forward Contracts) (Details) - Forward Contracts - USD ($) $ in Thousands	Mar. 30, 2019	Sep. 30, 2018
Not Designated as Hedging Instrument
Notional amounts	$ 438,378	$ 405,956
Not Designated as Hedging Instrument | Canadian / U.S. Dollar
Notional amounts	8,053	7,334
Not Designated as Hedging Instrument | Japanese Yen / Euro
Notional amounts	336,070	297,730
Not Designated as Hedging Instrument | British Pound / U.S. Dollar
Notional amounts	8,769	7,074
Not Designated as Hedging Instrument | Israeli Sheqel / U.S. Dollar
Notional amounts	7,399	9,778
Not Designated as Hedging Instrument | Japanese Yen / U.S. Dollar
Notional amounts	27,101	37,456
Not Designated as Hedging Instrument | Swiss Franc / U.S. Dollar
Notional amounts	7,046	11,944
Not Designated as Hedging Instrument | Danish Kroner/ U.S. Dollar
Notional amounts	4,044	1,902
Not Designated as Hedging Instrument | Swedish Kronor / U.S. Dollar
Notional amounts	19,509	18,207
Not Designated as Hedging Instrument | Chinese Renminbi / U.S. Dollar
Notional amounts	9,409	9,010
Not Designated as Hedging Instrument | All other
Notional amounts	10,978	5,521
Net Investment Hedging | Designated as Hedging Instrument
Notional amounts	219,995	0
Net Investment Hedging | Designated as Hedging Instrument | Japanese Yen / Euro
Notional amounts	219,995	0
Cash Flow Hedging | Designated as Hedging Instrument
Notional amounts	0	12,396
Cash Flow Hedging | Designated as Hedging Instrument | Japanese Yen / Euro
Notional amounts	0	8,495
Cash Flow Hedging | Designated as Hedging Instrument | Japanese Yen / U.S. Dollar
Notional amounts	0	2,193
Cash Flow Hedging | Designated as Hedging Instrument | Swedish Kronor / U.S. Dollar
Notional amounts	$ 0	$ 1,708