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v2.4.1.9

Long-term Debt (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2014
Debt financing costs | $ 0 us-gaap_PaymentsOfDebtIssuanceCosts | $ 1,297 us-gaap_PaymentsOfDebtIssuanceCosts |
2008 Note Purchase Agreement [Member] |  |  |
Issuance Date | Oct. 01, 2008 |  |
2009 Note Purchase Agreement [Member] |  |  |
Issuance Date | Apr. 01, 2009 |  |
2013 Note Purchase Agreement [Member] |  |  |
Issuance Date | Oct. 01, 2013 |  |
Face Amount | 250,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = wwd_NotePurchaseAgreement2013Member |  |
Debt financing costs |  | 1,297 us-gaap_PaymentsOfDebtIssuanceCosts / us-gaap_DebtInstrumentAxis = wwd_NotePurchaseAgreement2013Member |
Series J Notes [Member] |  |  |
Variable interest rate | 1.48%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = wwd_SeriesJNotesMember |  |
First Closing Notes [Member] |  |  |
Issuance Date | Oct. 01, 2013 |  |
Second Closing Notes [Member] |  |  |
Issuance Date | Nov. 15, 2013 |  |
Foreign Lines of Credit And Overdraft Facilities [Member] |  |  |
Outstanding borrowings | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_CreditFacilityAxis = wwd_ForeignLinesOfCreditAndOverdraftFacilitiesMember |  |
Chinese Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 22,700 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = wwd_ChineseCreditFacilityMember |  | 22,700 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = wwd_ChineseCreditFacilityMember
Outstanding borrowings | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_CreditFacilityAxis = wwd_ChineseCreditFacilityMember |  |
Chinese Credit Facility, RMB Denominated Loan [Member] |  |  |
Variable Rate Basis | interest at the prevailing interest rate offered by the People's Bank of China on the date of borrowing, plus a margin equal to 25% of that prevailing rate |  |
Chinese Credit Facility, USD Denominated Loan [Member] |  |  |
Variable Rate Basis | interest at the lender's cost of borrowing rate at the date of borrowing, plus 3% |  |
Revolving Credit Agreement [Member] |  |  |
Variable Rate Basis | LIBOR |  |
Line of Credit Facility, Expiration Date | Jul. 01, 2018 |  |
Line of Credit Facility, Maximum Borrowing Capacity | 600,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember |  |
Outstanding borrowings | $ 200,000 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember |  | $ 210,000 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember
Credit facility effective interest rate on outstanding borrowing | 1.22%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember |  | 1.21%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember
Revolving Credit Agreement [Member] | Minimum [Member] |  |  |
Basis Spread On Variable Rate | 0.85%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Revolving Credit Agreement [Member] | Maximum [Member] |  |  |
Basis Spread On Variable Rate | 1.65%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = wwd_RevolvingCreditAgreementMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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