Other Liabilities (Schedule of Other Liabilities) (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Sep. 30, 2023
Other Liabilities, Noncurrent [Abstract]
Net accrued retirement benefits, less amounts recognized within accrued liabilities		$ 78,117	$ 72,570
Total unrecognized tax benefits		8,618	8,020
Noncurrent income taxes payable		10,714	10,714
Deferred economic incentives	[1]	5,479	5,797
Noncurrent operating lease liabilities		20,250	20,685
Net noncurrent contract liabilities		419,939	414,657
Cross-currency swap derivative liability		12,362
Other		10,403	11,047
Other liabilities		$ 565,882	$ 543,490

[1] Woodward receives certain economic incentives from various state and local authorities related to capital expansion projects. Such amounts are initially recorded as deferred credits and are being recognized as a reduction to pre-tax expense over the economic lives of the related capital expansion projects.