Leases (Lease-Related Expenses) (Details) - USD ($) $ in Thousands		12 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Operating lease expense		$ 6,804	$ 6,213	$ 6,335
Amortization of financing lease assets		820	914	454
Interest on financing lease liabilities		138	157	51
Variable lease expense		1,299	917	929
Short-term lease expense		164	196	190
Sublease income	[1]			(192)
Total lease expense		$ 9,225	$ 8,397	$ 7,767

[1] Relates to two separate subleases Woodward has entered into for a leased manufacturing building in Niles, Illinois, each of which expired during fiscal year 2022.