Derivative Financial Instruments and Hedging Activities (Details) - USD ($) $ in Millions	Sep. 30, 2015	Sep. 30, 2014
Not designated as hedging instruments
Open derivative instruments
Derivative, Notional Amount	$ 125.8
Sell | Not designated as hedging instruments | euros
Open derivative instruments
Derivative, Notional Amount	17.3
Sell | Not designated as hedging instruments | Sell Australian dollars
Open derivative instruments
Derivative, Notional Amount	53.2
Buy | Not designated as hedging instruments | euros
Open derivative instruments
Derivative, Notional Amount	17.9
Buy | Not designated as hedging instruments | Buy Swedish korna and sell euro
Open derivative instruments
Derivative, Notional Amount	17.6
Buy | Not designated as hedging instruments | United Kingdom, Pounds
Open derivative instruments
Derivative, Notional Amount	9.4
Buy | Not designated as hedging instruments | Buy euro and sell Canadian dollars [Member]
Open derivative instruments
Derivative, Notional Amount	6.6
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member]
Open derivative instruments
Derivative, Notional Amount	12.7	$ 0.7
Foreign Exchange Contract [Member] | Interest Rate Contract [Member]
Open derivative instruments
Derivative, Notional Amount	$ 20.5