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Supplemental Quarterly Financial Data (Unaudited) (Narrative) (Details) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2015 USD ($)
Quarterly Financial Data |
Other expenses, special charges | $ 16,100

X
- References No definition available. + Details
Name: | us-gaap_QuarterlyFinancialDataAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition One-time expenses recognized in the period related to the entity's efforts to consolidate facilities, reduce costs and address current market conditions. + References No definition available. + Details
Name: | wwd_OtherExpensesSpecialCharges
Namespace Prefix: | wwd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration