XML 51 R53.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Financial Instruments and Fair Value Measurements (Schedule of Weighted Average Interest Rates Used to Calculate Long-Term Debt Fair Value) (Details) | Mar. 31, 2012 | Sep. 30, 2011
--- | --- | ---
Financial Instruments and Fair Value Measurements |  |
Long-term debt, weighted-average interest rate used to estimate fair value | 2.50% | 2.60%

X
- Details
Name: | wwd_FinancialInstrumentsAndFairValueMeasurementsAbstract
Namespace Prefix: | wwd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the weighted average interest rates used to estimate fair value of long-term debt at fixed interest rates calculated based on a model that discounted future principal and interest payments at interest rates available to the company at the end of the period for similar debt of the same maturity. + References No definition available. + Details
Name: | wwd_LongTermDebtFairValueWeightedAverageInterestRate
Namespace Prefix: | wwd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant