Fair value before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226000-175313

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (a)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4B

-Subparagraph (a),(c)

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Fair value before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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No definition available.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ 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 (c)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ 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 (d)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 50

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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.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Derivative Financial Instruments (Details 2) (USD $) In Millions, unless otherwise specified			6 Months Ended				6 Months Ended	3 Months Ended		6 Months Ended							3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2014 Interest rate swap agreements Cash flow hedges	Mar. 31, 2013 Derivatives designated as hedging instruments Foreign currency options Cash flow hedges Cost of revenue	Mar. 31, 2014 Derivatives designated as hedging instruments Foreign currency options Prepaid expenses and other current assets	Sep. 30, 2013 Derivatives designated as hedging instruments Foreign currency options Prepaid expenses and other current assets	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Cash flow hedges	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Cash flow hedges Other (expense) income	Mar. 31, 2013 Derivatives designated as hedging instruments Interest rate swap agreements Cash flow hedges Other (expense) income	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Cash flow hedges Other (expense) income	Mar. 31, 2013 Derivatives designated as hedging instruments Interest rate swap agreements Cash flow hedges Other (expense) income	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Other non-current assets	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Accrued expenses and other current liabilities	Sep. 30, 2013 Derivatives designated as hedging instruments Interest rate swap agreements Accrued expenses and other current liabilities	Mar. 31, 2014 Derivatives designated as hedging instruments Interest rate swap agreements Other long-term liabilities	Sep. 30, 2013 Derivatives designated as hedging instruments Interest rate swap agreements Other long-term liabilities	Mar. 31, 2014 Derivatives not designated as hedging instruments	Mar. 31, 2013 Derivatives not designated as hedging instruments	Mar. 31, 2014 Derivatives not designated as hedging instruments	Mar. 31, 2013 Derivatives not designated as hedging instruments	Mar. 31, 2013 Derivatives not designated as hedging instruments Option contracts Other (expense) income	Mar. 31, 2013 Derivatives not designated as hedging instruments Option contracts Other (expense) income	Mar. 31, 2014 Derivatives not designated as hedging instruments Foreign currency forward contracts General and administrative expenses	Mar. 31, 2013 Derivatives not designated as hedging instruments Foreign currency forward contracts General and administrative expenses	Mar. 31, 2014 Derivatives not designated as hedging instruments Foreign currency forward contracts General and administrative expenses	Mar. 31, 2013 Derivatives not designated as hedging instruments Foreign currency forward contracts General and administrative expenses	Mar. 31, 2014 Derivatives not designated as hedging instruments Foreign currency forward contracts Prepaid expenses and other current assets	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency forward contracts Prepaid expenses and other current assets	Mar. 31, 2014 Derivatives not designated as hedging instruments Foreign currency forward contracts Accrued expenses and other current liabilities	Sep. 30, 2013 Derivatives not designated as hedging instruments Foreign currency forward contracts Accrued expenses and other current liabilities
Fair values of outstanding derivative instruments
Derivative assets	$ 3.0	$ 1.7			$ 0.1	$ 0.1						$ 1.4															$ 1.5	$ 1.6
Derivative liabilities	4.8	5.2											3.5	2.6	0.5	1.1													0.8	1.5
Effective portion of derivatives expected to be reclassified from accumulated other comprehensive loss to interest expense, net			3.4
Effect of derivative instruments on income and other comprehensive income
Increase in Losses Recognized in Accumulated Other Comprehensive Loss on Derivatives Before Tax Effect (Effective Portion)			2.4				(0.3)
Losses Reclassified from Accumulated Other Comprehensive Loss into Income (Effective Portion)								(0.7)	(0.8)	(1.5)	(1.5)
Losses Recognized in Income on Derivatives (Amount Excluded from Effectiveness Testing and Ineffective Portion)				0.1
Non designated derivatives, Gains/(Losses) Recognized in Income on Derivatives (Amount Excluded from Effectiveness Testing and Ineffective Portion)																	$ 1.6	$ 0.8	$ (0.6)	$ (0.3)	$ (0.3)	$ (0.4)	$ 1.6	$ 1.1	$ (0.6)	$ 0.1