Leases (Lease-Related Expenses) (Details) - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease expense		$ 1,607	$ 1,553
Amortization of finance lease assets		79	126
Interest on finance lease liabilities		8	18
Variable lease expense		403	322
Short-term lease expense		40	82
Sublease income	[1]	(192)	(168)
Total lease expense		$ 1,945	$ 1,933

[1] Relates to two separate subleases Woodward has entered into for a leased manufacturing building in Niles, Illinois.