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Stock-Based Compensation (Tables)

6 Months Ended

Mar. 31, 2018

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]



	Three-Months Ended												Six-Months Ended
	March 31,												March 31,
	2018						2017						2018						2017
Weighted-average exercise price per share	$	72.01					$	62.64					$	78.91					$	62.64
Weighted-average grant date market value of Woodward stock	$	72.01					$	69.45					$	78.91					$	69.45
Expected term (years)		6.4						6.0	-	8.7				6.4	-	8.7				6.0	-	8.7
Estimated volatility		29.1%						31.5%	-	33.7%				29.1%	-	32.7%				31.5%	-	33.7%
Estimated dividend yield		0.8%						0.7%						0.6%	-	0.8%				0.7%
Risk-free interest rate		2.7%	-	2.8%				2.2%	-	2.5%				2.1%	-	2.8%				2.2%	-	2.5%



Activity for Stock Option Awards



		Three-Months Ended						Six-Months Ended
		March 31, 2018						March 31, 2018
		Number of options			Weighted-Average Exercise Price per Share			Number of options			Weighted-Average Exercise Price per Share
Options, beginning balance			5,937		$	44.48			5,236		$	39.58
Options granted			6			72.01			750			78.91
Options exercised			(63)			34.54			(97)			36.84
Options forfeited			-			-			(9)			55.61
Options, ending balance			5,880			44.62			5,880			44.62



Stock Options Vested, Or Expected to Vest and Are Exercisable



		Number			Weighted- Average Exercise Price			Weighted- Average Remaining Life in Years			Aggregate Intrinsic Value
Options outstanding			5,880		$	44.62			5.9		$	155,908
Options vested and exercisable			3,858			35.68			4.6			132,401
Options vested and expected to vest			5,782			44.25			5.9			155,118



Stock Options [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Changes in Nonvested Stock Options



		Three-Months Ended						Six-Months Ended
		March 31, 2018						March 31, 2018
		Number of options			Weighted-Average Grant Date Fair Value per Share			Number of options			Weighted-Average Grant Date Fair Value Per Share
Options outstanding, beginning balance			2,020		$	21.63			2,072		$	18.61
Options granted			6			22.82			750			25.66
Options vested			(4)			23.10			(791)			17.57
Options forfeited			-			-			(9)			19.82
Options outstanding, ending balance			2,022			21.63			2,022			21.63



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- Definition

Tabular disclosure of the changes in outstanding nonvested shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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