Other Liabilities (Schedule of Other Liabilities) (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Sep. 30, 2023
Other Liabilities, Noncurrent [Abstract]
Net accrued retirement benefits, less amounts recognized within accrued liabilities		$ 78,464	$ 72,570
Total unrecognized tax benefits		9,351	8,020
Noncurrent income taxes payable		5,894	10,714
Deferred economic incentives	[1]	5,151	5,797
Noncurrent operating lease liabilities		19,202	20,685
Net noncurrent contract liabilities		426,810	414,657
Cross-currency swap derivative liability		4,968
Other		11,090	11,047
Other liabilities		$ 560,930	$ 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.