Derivative Financial Instruments (Notional Amounts Of Outstanding Forward Contracts) (Details) - Forward Contracts - USD ($) $ in Thousands	Apr. 01, 2017	Sep. 30, 2016
Designated as Hedging Instrument [Member]
Notional amounts	$ 73,337	$ 39,059
Designated as Hedging Instrument [Member] | Euro / U.S. Dollar
Notional amounts	53,116	26,181
Designated as Hedging Instrument [Member] | Japanese Yen / U.S. Dollar
Notional amounts	16,499	8,800
Designated as Hedging Instrument [Member] | Swedish Krona / U.S. Dollar
Notional amounts	3,722	4,078
Not Designated as Hedging Instrument [Member]
Notional amounts	277,986	249,534
Not Designated as Hedging Instrument [Member] | Canadian / U.S. Dollar
Notional amounts	8,475	14,685
Not Designated as Hedging Instrument [Member] | Swiss Franc / Euro
Notional amounts	11,956	0
Not Designated as Hedging Instrument [Member] | Chinese Yuan offshore / Euro
Notional amounts	9,762	0
Not Designated as Hedging Instrument [Member] | Euro / U.S. Dollar
Notional amounts	206,995	174,120
Not Designated as Hedging Instrument [Member] | Japanese Yen / Euro
Notional amounts	15,062	32,782
Not Designated as Hedging Instrument [Member] | Israeli Shekel / U.S. Dollar
Notional amounts	7,504	7,271
Not Designated as Hedging Instrument [Member] | Japanese Yen / U.S. Dollar
Notional amounts	2,585	6,716
Not Designated as Hedging Instrument [Member] | Swedish Krona / U.S. Dollar
Notional amounts	4,973	3,852
Not Designated as Hedging Instrument [Member] | Denmark, Kroner
Notional amounts	3,089	1,183
Not Designated as Hedging Instrument [Member] | All other
Notional amounts	$ 7,585	$ 8,925