Derivative Financial Instruments (Fair Value And Classification Of Derivatives On The Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Designated as Hedging Instrument | Other Current Assets | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	$ 370	$ 551
Designated as Hedging Instrument | Other Current Assets | Interest Rate Swaps
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	1,543	552
Designated as Hedging Instrument | Other Assets | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	28	50
Designated as Hedging Instrument | Other Assets | Interest Rate Swaps
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	439	314
Designated as Hedging Instrument | Total asset derivative
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	2,380	1,467
Designated as Hedging Instrument | Other Accrued Liabilities | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	1,824	1,434
Designated as Hedging Instrument | Other Accrued Liabilities | Interest Rate Swaps
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	0	10
Designated as Hedging Instrument | Other Accrued Liabilities | Net Investment Hedge
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	5	0
Designated as Hedging Instrument | Other Long-Term Liabilities | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	508	244
Designated as Hedging Instrument | Other Long-Term Liabilities | Interest Rate Swaps
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	0	15
Designated as Hedging Instrument | Total liability derivatives
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	2,337	1,703
Not Designated As Hedging Instruments | Other Current Assets | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative assets as hedging instruments, fair value	461	95
Not Designated As Hedging Instruments | Other Accrued Liabilities | Foreign Currency Contracts
Derivative Instruments, Fair Value
Derivative liabilities as hedging instruments, fair value	$ 647	$ 383