Derivative Financial Instruments (Notional Amounts Of Outstanding Forward Contracts) (Details) - Forward Contracts - USD ($) $ in Thousands	Jun. 29, 2019	Sep. 30, 2018
Not Designated as Hedging Instrument
Notional amounts	$ 471,539	$ 405,956
Not Designated as Hedging Instrument | Canadian / U.S. Dollar
Notional amounts	10,095	7,334
Not Designated as Hedging Instrument | Japanese Yen / Euro
Notional amounts	328,802	297,730
Not Designated as Hedging Instrument | British Pound / U.S. Dollar
Notional amounts	4,530	7,074
Not Designated as Hedging Instrument | Israeli Sheqel / U.S. Dollar
Notional amounts	8,641	9,778
Not Designated as Hedging Instrument | Japanese Yen / U.S. Dollar
Notional amounts	35,350	37,456
Not Designated as Hedging Instrument | Swiss Franc / U.S. Dollar
Notional amounts	9,364	11,944
Not Designated as Hedging Instrument | Danish Kroner/ U.S. Dollar
Notional amounts	3,600	1,902
Not Designated as Hedging Instrument | Swedish Kronor / U.S. Dollar
Notional amounts	17,893	18,207
Not Designated as Hedging Instrument | Chinese Yuan Offshore [Member]
Notional amounts	3,921	116
Not Designated as Hedging Instrument | Singapore, Dollars
Notional amounts	33,380	1,314
Not Designated as Hedging Instrument | Chinese Renminbi / U.S. Dollar
Notional amounts	9,217	9,010
Not Designated as Hedging Instrument | All other
Notional amounts	6,746	4,091
Net Investment Hedging | Designated as Hedging Instrument
Notional amounts	217,202	0
Net Investment Hedging | Designated as Hedging Instrument | Japanese Yen / Euro
Notional amounts	217,202	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