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Retirement Benefits (Tables)

12 Months Ended

Sep. 30, 2025

Defined Benefit Plan Disclosure [Line Items]

Schedule of Amount of Expense Associated with Defined Contribution Plans

The amount of expense associated with defined contribution plans was as follows:

		Year Ended September 30,
		2025				2024				2023
Company costs		$	55,611			$	51,148			$	44,202

Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Benefit Costs

Net periodic benefit costs consist of the following components reflected as expense in Woodward’s Consolidated Statement of Earnings:

		Year Ended September 30,
		United States												Other Countries												Total
		2025				2024				2023				2025				2024				2023				2025				2024				2023
Service cost		$	917			$	775			$	893			$	1,432			$	1,244			$	1,333			$	2,349			$	2,019			$	2,226
Interest cost			6,875				7,598				7,297				2,983				3,213				3,137				9,858				10,811				10,434
Expected return on plan assets			(10,992	)			(9,084	)			(8,297	)			(2,496	)			(2,406	)			(2,300	)			(13,488	)			(11,490	)			(10,597	)
Amortization of:
Net loss (gain)			171				226				292				(413	)			(679	)			(620	)			(242	)			(453	)			(328	)
Net prior service cost			762				698				698				23				23				22				785				721				720
Net periodic (benefit) cost		$	(2,267	)		$	213			$	883			$	1,529			$	1,395			$	1,572			$	(738	)		$	1,608			$	2,455

Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan

The following tables provide a reconciliation of the changes in the projected benefit obligation and fair value of assets for the defined benefit pension plans:

		At or for the Year Ended September 30,
		United States								Other Countries								Total
		2025				2024				2025				2024				2025				2024
Changes in projected benefit obligation:
Projected benefit obligation at beginning of year		$	140,955			$	127,222			$	77,347			$	67,263			$	218,302			$	194,485
Plan amendment			—				1,121				—				—				—				1,121
Service cost			917				775				1,432				1,244				2,349				2,019
Interest cost			6,875				7,598				2,983				3,213				9,858				10,811
Net actuarial (gains) losses			(6,027	)			13,249				(944	)			4,128				(6,971	)			17,377
Contribution by participants			—				—				12				12				12				12
Benefits paid			(9,112	)			(9,010	)			(3,818	)			(3,647	)			(12,930	)			(12,657	)
Foreign currency exchange rate changes			—				—				1,615				5,134				1,615				5,134
Projected benefit obligation at end of year		$	133,608			$	140,955			$	78,627			$	77,347			$	212,235			$	218,302
Changes in fair value of plan assets:
Fair value of plan assets at beginning of year		$	179,917			$	155,370			$	57,476			$	50,775			$	237,393			$	206,145
Actual return on plan assets			7,778				33,382				1,687				3,866				9,465				37,248
Contributions by the Company			—				175				1,423				1,863				1,423				2,038
Contributions by plan participants			—				—				12				12				12				12
Benefits paid			(9,112	)			(9,010	)			(3,818	)			(3,647	)			(12,930	)			(12,657	)
Foreign currency exchange rate changes			—				—				(222	)			4,607				(222	)			4,607
Fair value of plan assets at end of year		$	178,583			$	179,917			$	56,558			$	57,476			$	235,141			$	237,393
Net over/(under) funded status at end of year		$	44,975			$	38,962			$	(22,069	)		$	(19,871	)		$	22,906			$	19,091

Schedule of Accumulated Benefit Obligations In Excess of and Less Than Fair Value of Plan Assets

		Plans with accumulated benefit obligation in excess of plan assets								Plans with accumulated benefit obligation less than plan assets
		At September 30,								At September 30,
		2025				2024				2025				2024
Projected benefit obligation		$	(36,197	)		$	(56,783	)		$	(176,038	)		$	(161,519	)
Accumulated benefit obligation			(36,163	)			(56,757	)			(174,641	)			(160,302	)
Fair value of plan assets			—				20,053				235,141				217,340

Schedule of Amounts Recognized in Balance Sheets and Accumulated Other Comprehensive (Earnings) Losses

The following tables provide the amounts recognized in the Consolidated Balance Sheets and accumulated other comprehensive (earnings) losses for the defined benefit pension plans:

		Year Ended September 30,
		United States								Other Countries								Total
		2025				2024				2025				2024				2025				2024
Amounts recognized in the Consolidated Balance Sheets consist of:
Other non-current assets		$	44,975			$	39,148			$	14,129			$	16,673			$	59,104			$	55,821
Accrued liabilities			—				—				(1,372	)			(1,166	)			(1,372	)			(1,166	)
Other non-current liabilities			—				(186	)			(34,826	)			(35,378	)			(34,826	)			(35,564	)
Net over/(under) funded status at end of year		$	44,975			$	38,962			$	(22,069	)		$	(19,871	)		$	22,906			$	19,091
Amounts recognized in accumulated other comprehensive (earnings) losses consist of:
Unrecognized net prior service cost		$	2,437			$	3,200			$	488			$	509			$	2,925			$	3,709
Unrecognized net (gains) losses			(5,733	)			(2,749	)			(4,886	)			(4,655	)			(10,619	)			(7,404	)
Total amounts recognized			(3,296	)			451				(4,398	)			(4,146	)			(7,694	)			(3,695	)
Deferred taxes			(2,557	)			(3,499	)			(27	)			(191	)			(2,584	)			(3,690	)
Amounts recognized in accumulated other comprehensive (earnings) losses		$	(5,853	)		$	(3,048	)		$	(4,425	)		$	(4,337	)		$	(10,278	)		$	(7,385	)

Schedule of Changes in Plan Assets and Benefit Obligations Recorded in Other Comprehensive (Earnings) Losses

The following table reconciles the changes in accumulated other comprehensive (earnings) losses for the defined benefit pension plans:

		Year Ended September 30,
		United States								Other Countries								Total
		2025				2024				2025				2024				2025				2024
Beginning of year		$	451			$	11,304			$	(4,146	)		$	(7,360	)		$	(3,695	)		$	3,944
Net (gain) loss			(2,814	)			(11,050	)			(135	)			2,668				(2,949	)			(8,382	)
Prior service cost			—				1,121				—				—				—				1,121
Amortization of:
Net (loss) gain			(171	)			(226	)			413				679				242				453
Prior service cost			(762	)			(698	)			(23	)			(23	)			(785	)			(721	)
Foreign currency exchange rate changes			—				—				(507	)			(110	)			(507	)			(110	)
End of year		$	(3,296	)		$	451			$	(4,398	)		$	(4,146	)		$	(7,694	)		$	(3,695	)

Schedule of Expected Benefit Payments

Pension benefit payments are made from the assets of the pension plans. The German pension plans are unfunded; therefore, benefit payments are made from Company contributions into these plans as required to meet the payment obligations. Using foreign exchange rates as of September 30, 2025 and expected future service assumptions, it is anticipated that the future benefit payments will be as follows:

Year Ending September 30,		United States				Other Countries				Total
2026		$	9,790			$	3,693			$	13,483
2027			10,142				3,776				13,918
2028			10,410				4,057				14,467
2029			10,633				4,225				14,858
2030			10,759				4,888				15,647
2031-2035			53,000				24,718				77,718

Schedule of Allocation of Plan Assets, Actual and Target Allocations

The asset allocations are monitored and rebalanced regularly by investment managers assigned to the individual pension plans. The actual allocations of pension plan assets and target allocation ranges by asset class are as follows:

		At September 30,
		2025										2024
		Percentage of Plan Assets		Target Allocation Ranges								Percentage of Plan Assets		Target Allocation Ranges
United States:
Asset Class
Equity Securities		31.6%		2.1%			—			51.1%		30.5%		2.3%			—			51.1%
Debt Securities		67.2%		58.9%			—			96.8%		67.6%		58.9%			—			96.7%
Other		1.2%		0.0%								1.9%		0.0%
		100.0%										100.0%
United Kingdom:
Asset Class
Debt Securities		0.0%		0.0%								95.8%		90.0%			—			100.0%
Insurance Contract		76.2%		90.0%			—			100.0%		0.0%		0.0%
Other		23.8%		0.0%			—			10.0%		4.2%		0.0%			—			10.0%
		100.0%										100.0%
Japan:
Asset Class
Equity Securities		40.8%		36.0%			—			44.0%		39.7%		36.0%			—			44.0%
Debt Securities		58.3%		55.0%			—			63.0%		59.4%		55.0%			—			63.0%
Other		1.0%		0%			—			2.0%		0.9%		0.0%			—			2.0%
		100.0%										100.0%

Schedule of Allocation of Plan Assets, Fair Value Hierarchy

The following tables present Woodward’s pension plan assets using the fair value hierarchy established by U.S. GAAP:

		At September 30, 2025
		Level 1								Level 2								Level 3
		United States				Other Countries				United States				Other Countries				United States				Other Countries				Total
Asset Category:
Cash and cash equivalents		$	2,181			$	11,332			$	—			$	—			$	—			$	—			$	13,513
Mutual funds:
U.S. corporate bond fund			120,010				—				—				—				—				—				120,010
U.S. equity large cap fund			35,001				—				—				—				—				—				35,001
International equity large cap growth fund			21,391				—				—				—				—				—				21,391
Pooled funds:
Japanese equity securities			—				—				—				2,000				—				—				2,000
International equity securities			—				—				—				1,818				—				—				1,818
Japanese fixed income securities			—				—				—				4,046				—				—				4,046
International fixed income securities			—				—				—				1,397				—				—				1,397
Insurance Contracts:
U.K. Insurance contract			—				—				—				—				—				35,965				35,965
Total assets		$	178,583			$	11,332			$	—			$	9,261			$	—			$	35,965			$	235,141

		At September 30, 2024
		Level 1								Level 2								Level 3
		United States				Other Countries				United States				Other Countries				United States				Other Countries				Total
Asset Category:
Cash and cash equivalents		$	3,370			$	2,130			$	—			$	—			$	—			$	—			$	5,500
Mutual funds:
U.S. corporate bond fund			121,581				—				—				—				—				—				121,581
U.S. equity large cap fund			33,454				—				—				—				—				—				33,454
International equity large cap growth fund			21,512				—				—				—				—				—				21,512
Pooled funds:
Japanese equity securities			—				—				—				1,939				—				—				1,939
International equity securities			—				—				—				1,786				—				—				1,786
Japanese fixed income securities			—				—				—				4,157				—				—				4,157
International fixed income securities			—				—				—				1,409				—				—				1,409
Index linked U.K. corporate bonds fund			—				—				—				17,085				—				—				17,085
Index linked U.K. government securities fund			—				—				—				12,049				—				—				12,049
Index linked U.K. long-term government securities fund			—				—				—				14,924				—				—				14,924
Index U.K. long-term government securities fund			—				—				—				1,997				—				—				1,997
Total assets		$	179,917			$	2,130			$	—			$	55,346			$	—			$	—			$	237,393

Other Postretirement Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Actuarial Assumptions Used

The actuarial assumptions used in measuring the net periodic benefit cost and plan obligations of postretirement benefits were as follows:

		At September 30,
		2025				2024				2023
Weighted-average discount rate used to determine benefit obligation			5.30	%			5.00	%			6.25	%
Weighted-average discount rate used to determine net periodic benefit cost			5.00				6.25				5.70

Schedule of Net Periodic Benefit Costs

Net periodic benefit costs consist of the following components reflected as expense in Woodward’s Consolidated Statements of Earnings:

		Year Ended September 30,
		2025				2024				2023
Service cost		$	—			$	—			$	1
Interest cost			717				902				904
Amortization of:
Net gain			(441	)			(555	)			(495	)
Net periodic cost		$	276			$	347			$	410

Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan

The following table provides a reconciliation of the changes in the accumulated postretirement benefit obligation and fair value of assets for the postretirement benefits:

		Year Ended September 30,
		2025				2024
Changes in accumulated postretirement benefit obligation:
Accumulated postretirement benefit obligation at beginning of year		$	15,203			$	15,336
Service cost			—				—
Interest cost			717				902
Premiums paid by plan participants			753				834
Net actuarial (gain) loss			(278	)			597
Benefits paid			(2,202	)			(2,466	)
Accumulated postretirement benefit obligation at end of year		$	14,193			$	15,203
Changes in fair value of plan assets:
Fair value of plan assets at beginning of year		$	—			$	—
Contributions by the company			1,449				1,632
Premiums paid by plan participants			753				834
Benefits paid			(2,202	)			(2,466	)
Fair value of plan assets at end of year		$	—			$	—
Funded status at end of year		$	(14,193	)		$	(15,203	)

Schedule of Amounts Recognized in Balance Sheets and Accumulated Other Comprehensive (Earnings) Losses

The following tables provide the amounts recognized in the Consolidated Balance Sheets and accumulated other comprehensive (earnings) losses for the postretirement plans:

		Year Ended September 30,
		2025				2024
Amounts recognized in Consolidated Balance Sheets consist of:
Accrued liabilities		$	(1,576	)		$	(1,668	)
Other non-current liabilities			(12,617	)			(13,535	)
Funded status at end of year		$	(14,193	)		$	(15,203	)
Amounts recognized in accumulated other comprehensive income consist of:
Unrecognized net prior service cost (benefit)		$	—			$	—
Unrecognized net gains			(5,097	)			(5,260	)
Total amounts recognized			(5,097	)			(5,260	)
Deferred taxes			968				1,009
Amounts recognized in accumulated other comprehensive (earnings)		$	(4,129	)		$	(4,251	)

Schedule of Changes in Plan Assets and Benefit Obligations Recorded in Other Comprehensive (Earnings) Losses

The following table reconciles the changes in accumulated other comprehensive (earnings) losses for the other postretirement benefit plans:

		Year Ended September 30,
		2025				2024
Beginning of year		$	(5,260	)		$	(6,412	)
Net (gain) loss			(278	)			597
Amortization of:
Net gain			441				555
End of year		$	(5,097	)		$	(5,260	)

Schedule of Health Care Cost Trend Rates

Assumed healthcare cost trend rates at September 30 were as follows:

		2025				2024
Health-care cost trend rate assumed for next year			7.00	%			6.00	%
Rate to which the cost trend rate is assumed to decline
(the ultimate trend rate)			5.00	%			5.00	%
Year that the rate reaches the ultimate trend rate		2033				2030

Schedule of Future Postretirement Company Contributions

Using expected future service, it is anticipated that the future Company contributions to pay benefits for other postretirement benefit plans, excluding participate contributions, will be as follows:

Year Ending September 30,
2026		$	2,379
2027			2,318
2028			2,251
2029			2,176
2030			2,087
2031-2035			8,751

United States [Member] | Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Actuarial Assumptions Used

The actuarial assumptions used in measuring the net periodic benefit cost and plan obligations of retirement pension benefits were as follows:

		At September 30,
		2025				2024				2023
United States:
Weighted-average assumptions to determine benefit obligation:
Discount rate			5.50	%			5.05	%			6.20	%
Weighted-average assumptions to determine periodic benefit costs:
Discount rate			5.05				6.20				5.70
Long-term rate of return on plan assets			6.28				6.03				5.53

United Kingdom | Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Actuarial Assumptions Used

		At September 30,
		2025				2024				2023
United Kingdom:
Weighted-average assumptions to determine benefit obligation:
Discount rate			4.90	%			5.28	%			5.85	%
Rate of compensation increase			3.20				3.40				3.60
Weighted-average assumptions to determine periodic benefit costs:
Discount rate - service cost			5.41				5.91				4.99
Discount rate - interest cost			5.13				5.84				5.71
Rate of compensation increase			3.40				3.60				4.00
Long-term rate of return on plan assets			4.70				4.90				4.80

Japan | Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Actuarial Assumptions Used

		At September 30,
		2025				2024				2023
Japan:
Weighted-average assumptions to determine benefit obligation:
Discount rate			2.90	%			1.92	%			2.01	%
Rate of compensation increase			4.00				3.00				2.00
Weighted-average assumptions to determine periodic benefit costs:
Discount rate - service cost			2.10				2.20				1.78
Discount rate - interest cost			1.53				1.58				1.17
Rate of compensation increase			3.00				2.00				2.00
Long-term rate of return on plan assets			3.75				3.25				2.75

Germany [Member] | Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Actuarial Assumptions Used

		At September 30,
		2025				2024				2023
Germany:
Weighted-average assumptions to determine benefit obligation:
Discount rate			4.05	%			3.58	%			4.27	%
Rate of compensation increase			2.50				2.50				2.50
Weighted-average assumptions to determine periodic benefit costs:
Discount rate - service cost			3.64				4.23				3.95
Discount rate - interest cost			3.47				4.29				3.91
Rate of compensation increase			2.50				2.50				2.50

X

- Definition

Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans.

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- Definition

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+ References

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