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Retirement Benefits (Schedule of Future Postretirement Company Contributions) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Sep. 30, 2014
United States Pension Plans of US Entity, Defined Benefit [Member] |
2015 | $ 21
United Kingdom Plan, Defined Benefit [Member] |
2015 | 1,507
Japan Plan, Defined Benefit [Member] |
2015 | 1,045
Other Postretirement Benefit Plans, Defined Benefit [Member] |
2015 | 3,778
2016 | 3,802
2017 | 3,760
2018 | 3,715
2019 | 3,686
2020 - 2024 | $ 17,264

X
- Definition Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The employer's estimate, of the aggregate contributions expected to be paid to the plan after year five. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | wwd_DefinedBenefitPlanEstimatedFutureEmployerContributionsAfterYearFive
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The employer's estimate, of contributions expected to be paid to the plan in year five. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | wwd_DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearFive
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The employer's estimate, of contributions expected to be paid to the plan in year four. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | wwd_DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearFour
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The employer's estimate, of contributions expected to be paid to the plan in year three. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | wwd_DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearThree
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The employer's estimate, of contributions expected to be paid to the plan in year two. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions. + References No definition available. + Details
Name: | wwd_DefinedBenefitPlanEstimatedFutureEmployerContributionsInYearTwo
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant