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Stockholders' Equity (Tables) | 3 Months Ended
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Dec. 31, 2019
Stock Options [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of Assumptions Used in Estimate of Fair Value of Stock Option Awards |
| Three-Months Ended
| December 31,
| 2019 |  | 2018
Weighted-average exercise price per share | $ | 104.82 |  |  | $ | 79.79 |
Weighted-average grant date market value of Woodward stock | $ | 104.82 |  |  | $ | 79.79 |
Expected term (years) |  | 6.4 | - | 8.7 |  |  |  | 6.5 | - | 8.7 |
Estimated volatility |  | 25.7% | - | 30.1% |  |  |  | 25.7% | - | 31.0% |
Estimated dividend yield |  | 0.6% |  |  |  | 0.7% | - | 0.8% |
Risk-free interest rate |  | 1.6% | - | 1.7% |  |  |  | 2.7% | - | 3.1% |
Summary of Activity for Stock Option Awards |
|  | Three-Months Ended
|  | December 31, 2019
|  | Number of options |  | Weighted-Average Exercise Price per Share
Options, beginning balance |  |  | 5,387 |  | $ | 53.73
Options granted |  |  | 626 |  |  | 104.82
Options exercised |  |  | (226) |  |  | 33.42
Options forfeited |  |  | (21) |  |  | 81.53
Options, ending balance |  |  | 5,766 |  |  | 59.97
Changes in Non-vested Stock Options |
|  | Three-Months Ended
|  | December 31, 2019
|  | Number of options |  | Weighted-Average Grant Date Fair Value per Share
Non-vested options outstanding, beginning balance |  |  | 2,068 |  | $ | 23.43
Options granted |  |  | 626 |  |  | 28.55
Options vested |  |  | (768) |  |  | 21.43
Options forfeited |  |  | (21) |  |  | 25.19
Non-vested options outstanding, ending balance |  |  | 1,905 |  |  | 25.90
Stock Options Vested, or Expected to Vest and Exercisable |
|  | Number |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Life in Years |  | Aggregate Intrinsic Value
Options outstanding |  |  | 5,766 |  | $ | 59.97 |  |  | 6.2 |  | $ | 337,161
Options vested and exercisable |  |  | 3,862 |  |  | 47.06 |  |  | 4.9 |  |  | 275,645
Options vested and expected to vest |  |  | 5,640 |  |  | 59.30 |  |  | 6.1 |  |  | 333,494
Restricted Stock Units (RSUs) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Activity for Restricted Stock Units |
|  | Three-Months Ended
|  | December 31, 2019
|  |  | Number |  |  | Weighted-Average Grant Date Fair Value per Unit
Beginning balance |  |  | 9 |  | $ | 91.55
Units granted |  |  | - |  |  | -
Units vested |  |  | - |  |  | -
Units forfeited |  |  | - |  |  | -
Ending balance |  |  | 9 |  |  | 91.55

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- Definition 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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