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Derivative Instruments and Hedging Activities (Tables) | 12 Months Ended
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Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Fair value of derivative financial instruments |
|  |  |  | Fair Value of Derivative Instruments
Derivative Instrument |  | Balance Sheet Location |  | September 30, 2014 |  | September 30, 2013
|  |  |  | (in thousands)
Foreign currency forwards |  | Prepaid expenses and other assets |  | $ | 2,420 |  |  | $ | 1,813 |
Derivative financial instruments loss (gain) recognized in other comprehensive income |
|  | Amount of (Loss) Gain Recognized in Other Comprehensive Income on Derivatives (Effective Portion)
|  | Fiscal Year Ended September 30,
Derivative Instrument |  | 2014 |  | 2013 |  | 2012
|  | (in thousands)
Foreign currency forwards |  | $ | (453 | ) |  | $ | 2,388 |  |  | $ | — |
Derivative financial instruments loss (gain) recognized in income |
|  |  |  | Amount of (Loss) Gain on Derivatives Reclassified into Income from Accumulated Other Comprehensive Income (Effective Portion)
|  |  |  | Fiscal Year Ended September 30,
Derivative Instrument |  | Location of Gain |  | 2014 |  | 2013 |  | 2012
|  |  |  | (in thousands)
Foreign currency forwards |  | Interest expense (income), net / Other income |  | $ | (49 | ) |  | $ | 2,536 |  |  | $ | — |
Information regarding derivative instruments not designated as hedging instruments | The following tables set forth certain information regarding our derivative instruments not designated as hedging instruments:
|  |  |  | Fair Value Asset (Liability) of Derivative Instruments
|  |  |  | Fiscal Year Ended September 30,
Derivative Instrument |  | Balance Sheet Location |  | 2014 |  | 2013 |  | 2012
|  |  |  | (in thousands)
Convertible notes hedges |  | Other assets, net |  | $ | 36,994 |  |  | $ | — |  |  | $ | — |
Convertible notes embedded derivative |  | Long-term debt, less current maturities |  | (36,994 | ) |  | — |  |  | — |
|  | Net balance sheet asset (liability) |  | $ | — |  |  | $ | — |  |  | $ | — |
Foreign currency forwards |  | Prepaid expenses and other assets |  | $ | 1,152 |  |  | $ | — |  |  | $ | — |
Foreign currency forwards |  | Other current liabilities |  | 1,308 |  |  | — |  |  | — |
|  | Net balance sheet asset |  | $ | 2,460 |  |  | $ | — |  |  | $ | — |
|  |  |  | Amount of Unrealized Gain on Derivatives
|  |  |  | Fiscal Year Ended September 30,
Derivative Instrument |  | Location of Gain |  | 2014 |  | 2013 |  | 2012
|  |  |  | (in thousands)
Foreign currency forwards |  | Other income |  | $ | 2,460 |  |  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) 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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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified 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 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + 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 (e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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