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Derivative Financial Instruments (Notional Amounts Of Outstanding Forward Contracts) (Details) - Forward Contracts - USD ($) $ in Thousands | Mar. 31, 2018 | Sep. 30, 2017
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Designated as Hedging Instrument |  |
Notional amounts | $ 90,937 | $ 101,597
Designated as Hedging Instrument | Euro / U.S. Dollar |  |
Notional amounts | 55,744 | 64,831
Designated as Hedging Instrument | Japanese Yen / U.S. Dollar |  |
Notional amounts | 20,077 | 22,675
Designated as Hedging Instrument | Swedish Krona / U.S. Dollar |  |
Notional amounts | 15,116 | 14,091
Not Designated as Hedging Instrument |  |
Notional amounts | 401,511 | 318,519
Not Designated as Hedging Instrument | Canadian / U.S. Dollar |  |
Notional amounts | 7,500 | 12,809
Not Designated as Hedging Instrument | Swiss Franc / Euro |  |
Notional amounts | 0 | 7,157
Not Designated as Hedging Instrument | Switzerland, Francs |  |
Notional amounts | 13,135 | 605
Not Designated as Hedging Instrument | Chinese Yuan offshore / Euro |  |
Notional amounts | 0 | 10,423
Not Designated as Hedging Instrument | Euro / U.S. Dollar |  |
Notional amounts | 320,627 | 244,000
Not Designated as Hedging Instrument | Japanese Yen / Euro |  |
Notional amounts | 18,864 | 17,694
Not Designated as Hedging Instrument | Israeli Shekel / U.S. Dollar |  |
Notional amounts | 6,684 | 8,820
Not Designated as Hedging Instrument | Japanese Yen / U.S. Dollar |  |
Notional amounts | 5,611 | 3,198
Not Designated as Hedging Instrument | Swedish Krona / U.S. Dollar |  |
Notional amounts | 12,619 | 4,627
Not Designated as Hedging Instrument | Danish Krona / U.S. Dollar |  |
Notional amounts | 4,629 | 1,743
Not Designated as Hedging Instrument | Brazilian Real / U.S. Dollar |  |
Notional amounts | 3,117 | 0
Not Designated as Hedging Instrument | All other |  |
Notional amounts | $ 8,725 | $ 7,443

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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