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v3.19.1

Stockholders' Equity (Tables) | 6 Months Ended
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Mar. 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 |
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﻿ | Three-Months Ended |  | Six-Months Ended
﻿ | March 31, |  | March 31,
﻿ | 2019 |  | 2018 |  | 2019 |  | 2018
﻿Weighted-average exercise price per share | $ | 77.12 |  |  | $ | 72.01 |  |  | $ | 79.12 |  |  | $ | 78.91 |
﻿Weighted-average grant date market value of Woodward stock | $ | 77.12 |  |  | $ | 72.01 |  |  | $ | 79.12 |  |  | $ | 78.91 |
﻿Expected term (years) |  | 6.5 |  |  |  | 6.4 |  |  |  | 6.5 | - | 8.7 |  |  |  | 6.4 | - | 8.7 |
﻿Estimated volatility |  | 25.8% | - | 26.0% |  |  |  | 29.1% |  |  |  | 25.7% | - | 31.0% |  |  |  | 29.1% | - | 32.7% |
﻿Estimated dividend yield |  | 0.7% | - | 0.8% |  |  |  | 0.8% |  |  |  | 0.7% | - | 0.8% |  |  |  | 0.6% | - | 0.8% |
﻿Risk-free interest rate |  | 2.6% |  |  |  | 2.7% | - | 2.8% |  |  |  | 2.6% | - | 3.1% |  |  |  | 2.1% | - | 2.8% |
﻿
Summary of Activity for Stock Option Awards |
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﻿ |  | Three-Months Ended |  | Six-Months Ended
﻿ |  | March 31, 2019 |  | March 31, 2019
﻿ |  | Number of options |  | Weighted-Average Exercise Price per Share |  | Number of options |  | Weighted-Average Exercise Price per Share
﻿Options, beginning balance |  |  | 6,173 |  | $ | 49.40 |  |  | 5,611 |  | $ | 45.42
﻿Options granted |  |  | 226 |  |  | 77.12 |  |  | 900 |  |  | 79.12
﻿Options exercised |  |  | (638) |  |  | 32.57 |  |  | (745) |  |  | 32.41
﻿Options expired |  |  | (1) |  |  | 78.97 |  |  | (1) |  |  | 78.97
﻿Options forfeited |  |  | (27) |  |  | 68.35 |  |  | (32) |  |  | 68.73
﻿Options, ending balance |  |  | 5,733 |  |  | 52.27 |  |  | 5,733 |  |  | 52.27
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Changes in Non-vested Stock Options |
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﻿ |  | Three-Months Ended |  | Six-Months Ended
﻿ |  | March 31, 2019 |  | March 31, 2019
﻿ |  | Number of options |  | Weighted-Average Grant Date Fair Value per Share |  | Number of options |  | Weighted-Average Grant Date Fair Value Per Share
﻿Non-vested options outstanding, beginning balance |  |  | 1,862 |  | $ | $23.50 |  |  | 1,988 |  | $ | 21.64
﻿Options granted |  |  | 226 |  |  | $22.22 |  |  | 900 |  |  | 23.99
﻿Options vested |  |  | (3) |  |  | $25.56 |  |  | (798) |  |  | 19.80
﻿Options forfeited |  |  | (27) |  |  | $22.82 |  |  | (32) |  |  | 23.00
﻿Non-vested options outstanding, ending balance |  |  | 2,058 |  |  | $23.36 |  |  | 2,058 |  |  | 23.36
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Stock Options Vested, or Expected to Vest and Exercisable |
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﻿ |  | Number |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Life in Years |  | Aggregate Intrinsic Value
﻿Options outstanding |  |  | 5,733 |  | $ | 52.27 |  |  | 6.1 |  | $ | 262,179
﻿Options vested and exercisable |  |  | 3,675 |  |  | 41.53 |  |  | 4.8 |  |  | 207,524
﻿Options vested and expected to vest |  |  | 5,608 |  |  | 51.74 |  |  | 6.1 |  |  | 259,403
﻿
Restricted Stock Units (RSUs) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of Activity for Restricted Stock Units |
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﻿ |  | Three-Months Ended |  | Six-Months Ended
﻿ |  | March 31, 2019 |  | March 31, 2019
﻿ |  |  | Number |  |  | Fair Value per Share |  |  | Number |  |  | Fair Value per Share
﻿Beginning balance |  |  | 10 |  | $ | 82.71 |  |  | 10 |  | $ | 82.71
﻿Shares granted |  |  | - |  |  | n/a |  |  | - |  |  | n/a
﻿Shares vested |  |  | - |  |  | n/a |  |  | - |  |  | n/a
﻿Shares forfeited |  |  | - |  |  | n/a |  |  | - |  |  | n/a
﻿Ending balance |  |  | 10 |  |  | 82.71 |  |  | 10 |  |  | 82.71
﻿

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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=109197908&loc=d3e5070-113901 + Details
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