Joint Venture (Narrative) (Details) - Woodward and General Electric Joint Venture [Member] - Sales [Member] - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Amortization of deferred income recognized as an increase to sales	$ 936	$ 1,182
Reduction to sales related to royalties owed to joint venture	$ 5,946	$ 4,420

Increase in sales related to the amortizaiton of deferred income recorded in connection with the formation of a joint venture. The joint venture formation transaction was not the culmination of an earnings event and therefore the consideration received was recorded as deferred income to be recognized/amortized over the estimated remainig lives of the underlying programs assigned to the joint venture.

No definition available.

Name:	wwd_SalesRevenueAmortizationOfDeferredIncomeFromFormationOfJointVenture
Namespace Prefix:	wwd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration