Intangible Assets, Net (Tables)

6 Months Ended

Mar. 31, 2021

Intangible Assets Net Excluding Goodwill [Abstract]

Schedule of Finite-lived and Indefinite-lived Intangible Assets by Major Class

	March 31, 2021							September 30, 2020
	Gross Carrying Value		Accumulated Amortization			Net Carrying Amount		Gross Carrying Value		Accumulated Amortization			Net Carrying Amount
Intangible assets with finite lives:
Customer relationships and contracts:
Aerospace	$	281,683	$	(203,451	)	$	78,232	$	281,683	$	(196,520	)	$	85,163
Industrial		408,252		(46,887	)		361,365		429,249		(57,045	)		372,204
Total	$	689,935	$	(250,338	)	$	439,597	$	710,932	$	(253,565	)	$	457,367
Intellectual property:
Aerospace	$	—	$	—		$	—	$	—	$	—		$	—
Industrial		15,821		(15,775	)		46		15,778		(15,640	)		138
Total	$	15,821	$	(15,775	)	$	46	$	15,778	$	(15,640	)	$	138
Process technology:
Aerospace	$	76,370	$	(65,565	)	$	10,805	$	76,371	$	(63,956	)	$	12,415
Industrial		90,796		(24,266	)		66,530		90,945		(22,300	)		68,645
Total	$	167,166	$	(89,831	)	$	77,335	$	167,316	$	(86,256	)	$	81,060
Other intangibles:
Aerospace	$	—	$	—		$	—	$	—	$	—		$	—
Industrial		233		(221	)		12		235		(183	)		52
Total	$	233	$	(221	)	$	12	$	235	$	(183	)	$	52
Intangible asset with indefinite life:
Tradename:
Aerospace	$	—	$	—		$	—	$	—	$	—		$	—
Industrial		67,958		—			67,958		68,094		—			68,094
Total	$	67,958	$	—		$	67,958	$	68,094	$	—		$	68,094
Total intangibles:
Aerospace	$	358,053	$	(269,016	)	$	89,037	$	358,054	$	(260,476	)	$	97,578
Industrial		583,060		(87,149	)		495,911		647,738		(138,605	)		509,133
Consolidated Total	$	941,113	$	(356,165	)	$	584,948	$	1,005,792	$	(399,081	)	$	606,711

Schedule of Finite-Lived Intangible Assets Amortization Expense

For the three and six-months ended March 31, 2021 and 2020, Woodward recorded amortization expense associated with intangibles of the following:

	Three-Months Ended				Six-Months Ended
	March 31,				March 31,
	2021		2020		2021		2020
Amortization expense	$	10,560	$	9,848	$	21,029	$	19,753

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Future amortization expense associated with intangibles is expected to be:

Year Ending September 30:
2021 (remaining)	$	20,668
2022		39,954
2023		38,903
2024		35,151
2025		29,937
Thereafter		352,377
	$	516,990