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Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2017

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
	December 31, 2017
Weighted-average exercise price per share	$	78.97
Weighted-average grant date market value of Woodward stock	$	78.97
Expected term (years)		6.4	-	8.7
Estimated volatility		30.3%	-	32.7%
Estimated dividend yield		0.6%
Risk-free interest rate		2.1%	-	2.3%



Activity for Stock Option Awards



		Three-Months Ended
		December 31, 2017
		Number of options			Weighted-Average Exercise Price per Share
Options, beginning balance			5,236		$	39.58
Options granted			744			78.97
Options exercised			(34)			41.13
Options forfeited			(9)			55.61
Options, ending balance			5,937			44.48



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			5,937		$	44.48			6.2		$	192,105
Options vested and exercisable			3,917			35.64			4.9			160,206
Options vested and expected to vest			5,823			44.07			6.1			190,725



Stock Options [Member]

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

Changes in Nonvested Stock Options



		Three-Months Ended
		December 31, 2017
		Number of options			Weighted-Average Grant Date Fair Value per Share
Options outstanding, beginning balance			2,072		$	18.61
Options granted			744			25.68
Options vested			(787)			17.54
Options forfeited			(9)			19.82
Options outstanding, ending balance			2,020			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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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
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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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