Leases (Lease-Related Expenses) (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease expense	$ 1,519
Amortization of finance lease assets	147
Interest on finance lease liabilities	20
Variable lease expense	307
Short-term lease expense	175
Sublease income	(125)	[1]
Total lease expense	$ 2,043

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