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Derivative Financial Instruments (Details) BRL in Millions, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2014 USD ($) | Sep. 30, 2013 USD ($) | Sep. 30, 2012 USD ($) | Sep. 30, 2014 GBP (£) | Sep. 30, 2014 BRL | Sep. 30, 2014 USD ($) | Sep. 30, 2013 BRL | Sep. 30, 2013 USD ($)
Cash Flow Hedging | Interest rate swap agreements |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Effective portion of derivatives before tax effect | $ 3.0 |  |  |  |  |  |  |
Effective portion of derivatives expected to be reclassified from accumulated other comprehensive loss to interest expense, net | 4.8 |  |  |  |  |  |  |
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap agreements |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Effective portion of derivatives before tax effect | $ (2.4) | $ (0.5) | $ (8.4) |  |  |  |  |
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap June 2018 |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | $ 300.0 |  |
Fixed Rate (as a percent) |  |  |  | 1.63% | 1.63% | 1.63% |  |
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap September 2015 |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | $ 250.0 |  | $ 250.0
Fixed Rate (as a percent) |  |  |  | 0.95% | 0.95% | 0.95% | 0.95% | 0.95%
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap December 2014 |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | $ 200.0 |  | $ 200.0
Fixed Rate (as a percent) |  |  |  | 0.68% | 0.68% | 0.68% | 0.68% | 0.68%
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap December 2013 |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  |  |  | $ 150.0
Fixed Rate (as a percent) |  |  |  |  |  |  | 0.55% | 0.55%
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Exchange Option |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional principal of derivative exchange contracts |  |  |  | £ 0 |  |  | BRL 2.1 | $ 0.9
Not Designated as Hedging Instrument | Foreign currency forward contracts | United States of America, Dollars | Purchase |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | $ 69.5 |  | 171.8
Not Designated as Hedging Instrument | Foreign currency forward contracts | United States of America, Dollars | Sell |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  | 71.5 |  | 174.2
Not Designated as Hedging Instrument | Foreign currency forward contracts | Brazil, Brazil Real | Purchase |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  | BRL 1.1 | 0.4 | 4.0 | 1.8
Not Designated as Hedging Instrument | Foreign currency forward contracts | Brazil, Brazil Real | Sell |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional Amount |  |  |  |  |  |  | BRL 8.2 | 3.6
Not Designated as Hedging Instrument | Options Held |  |  |  |  |  |  |  |
Derivative financial instruments |  |  |  |  |  |  |  |
Notional principal of derivative exchange contracts |  |  |  |  |  | $ 0.0 |  | $ 0.0

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- Definition Aggregate notional amount of foreign currency derivatives to exchange foreign currencies. Notional amount refers to the number of currency units specified in the foreign currency derivative contract. + References No definition available. + Details
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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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- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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