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EQUITY (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2021
Equity [Abstract] |
Schedule of Authorized and Issued Shares | Authorized and issued shares consisted of the following (in millions):
| September 30,
| 2021 |  | 2020
Preferred shares, no par value: |  |  |
Authorized | 0.2 shares |  | 0.2 shares
Issued | 0.0 shares |  | 0.0 shares
Common shares, no par value, $0.01 stated value per share: |  |  |
Authorized | 100.0 shares |  | 100.0 shares
Issued | 68.1 shares |  | 68.1 shares
Schedule of Accumulated Other Comprehensive Loss | Changes in AOCL by component were as follows for the fiscal years ended September 30:
|  | Foreign Currency Translation Adjustments |  | Net Unrealized Gain (Loss) On Derivative Instruments |  | Net Unrealized Loss On Securities |  | Net Unrealized Gain (Loss) in Pension and Other Post-Retirement Benefits |  |  |  | Accumulated Other Comprehensive Income (Loss)
Balance at September 30, 2018 |  | $ | (8.7) |  |  | $ | 8.3 |  |  | $ | — |  |  | $ | (45.6) |  |  |  |  | $ | (46.0) |
Other comprehensive income (loss) before reclassifications |  | (11.2) |  |  | (20.1) |  |  | — |  |  | (15.0) |  |  |  |  | (46.3) |
Amounts reclassified from accumulated other comprehensive net income (loss) |  | 2.5 |  |  | (2.0) |  |  | — |  |  | 2.8 |  |  |  |  | 3.3 |
Income tax benefit (expense) |  | — |  |  | 5.7 |  |  | — |  |  | 3.2 |  |  |  |  | 8.9 |
Net current period other comprehensive income (loss) |  | (8.7) |  |  | (16.4) |  |  | — |  |  | (9.0) |  |  |  |  | (34.1) |
Adoption of new accounting pronouncements |  | — |  |  | — |  |  | — |  |  | (13.8) |  |  |  |  | (13.8) |
Balance at September 30, 2019 |  | (17.4) |  |  | (8.1) |  |  | — |  |  | (68.4) |  |  |  |  | (93.9) |
Other comprehensive income (loss) before reclassifications |  | 10.5 |  |  | (19.7) |  |  | — |  |  | (12.9) |  |  |  |  | (22.1) |
Amounts reclassified from accumulated other comprehensive net income (loss) |  | 0.8 |  |  | 10.1 |  |  | — |  |  | 0.3 |  |  |  |  | 11.2 |
Income tax benefit (expense) |  | — |  |  | 2.5 |  |  | — |  |  | 3.2 |  |  |  |  | 5.7 |
Net current period other comprehensive income (loss) |  | 11.3 |  |  | (7.1) |  |  | — |  |  | (9.4) |  |  |  |  | (5.2) |
Balance at September 30, 2020 |  | (6.2) |  |  | (15.1) |  |  | — |  |  | (77.8) |  |  |  |  | (99.1) |
Other comprehensive income (loss) before reclassifications |  | 4.5 |  |  | 26.8 |  |  | (3.1) |  |  | 6.9 |  |  |  |  | 35.1 |
Amounts reclassified from accumulated other comprehensive net income (loss) |  | — |  |  | 7.3 |  |  | — |  |  | 0.4 |  |  |  |  | 7.7 |
Income tax benefit (expense) |  | — |  |  | (8.9) |  |  | 0.8 |  |  | (1.9) |  |  |  |  | (10.0) |
Net current period other comprehensive income (loss) |  | 4.5 |  |  | 25.2 |  |  | (2.3) |  |  | 5.4 |  |  |  |  | 32.8 |
Balance at September 30, 2021 |  | $ | 1.7 |  |  | $ | 10.2 |  |  | $ | (2.3) |  |  | $ | 72.5 |  |  |  |  | $ | (66.4) |
The sum of the components may not equal due to rounding.
Schedule of Share-Based Awards Granted | The following is a summary of the share-based awards granted during each of the periods indicated:
| Year Ended September 30,
| 2021 |  | 2020 |  | 2019
Employees |  |  |  |  |
Options | 183,553 |  |  | 37,255 |  |  | — |
Restricted stock units | 70,936 |  |  | 119,726 |  |  | 166,534 |
Performance units | 1,903 |  |  | 37,570 |  |  | 131,644 |
Non-Employee Directors |  |  |  |  |
Restricted and deferred stock units | 9,173 |  |  | 18,948 |  |  | 32,101 |
Total share-based awards | 265,565 |  |  | 213,499 |  |  | 330,279 |
Aggregate fair value at grant dates | $ | 30.2 |  |  | $ | 21.5 |  |  | $ | 25.5 |
Schedule of Share-Based Compensation | Total share-based compensation was as follows for each of the periods indicated:
| Year Ended September 30,
| 2021 |  | 2020 |  | 2019
Share-based compensation | $ | 40.6 |  |  | $ | 57.9 |  |  | $ | 38.4 |
Related tax benefit recognized | 7.4 |  |  | 14.6 |  |  | 9.5 |
Schedule of Aggregate Stock Option Activity | Stock option activity was as follows:
| No. of Options |  | Wtd. Avg. Exercise Price
Awards outstanding at September 30, 2020 | 619,225 |  |  | $ | 57.90 |
Granted | 183,553 |  |  | 236.53 |
Exercised | (234,587) |  |  | 51.18 |
Awards outstanding at September 30, 2021 | 568,191 |  |  | 118.38 |
Exercisable | 384,638 |  |  | 62.00 |
Summary of Certain Information Pertaining to Stock Option Awards Outstanding and Exercisable | The following summarizes certain information pertaining to stock option awards outstanding and exercisable at September 30, 2021:
|  | Awards Outstanding |  | Awards Exercisable
Range of Exercise Price |  | No. of Options |  | Wtd. Avg. Remaining Life |  | Wtd. Avg. Exercise Price |  | No. of Options |  | Wtd. Avg. Remaining Life |  | Wtd. Avg. Exercise Price
$42.60 - $42.60 |  | 3,706 |  |  | 0.30 |  | $ | 42.60 |  |  | 3,706 |  |  | 0.30 |  | $ | 42.60 |
$59.62 - $64.55 |  | 380,932 |  |  | 3.85 |  | 62.18 |  |  | 380,932 |  |  | 3.85 |  | 62.18 |
$236.53 - $236.53 |  | 183,553 |  |  | 9.35 |  | 236.53 |  |  | — |  |  | 0.00 |  | — |
|  | 568,191 |  |  | 5.60 |  | 118.38 |  |  | 384,638 |  |  | 3.82 |  | 62.00 |
Schedule of Intrinsic Value of Stock Option Awards Outstanding and Exercisable | The intrinsic values of the stock option awards outstanding and exercisable at September 30, 2021 were as follows:
| 2021
Outstanding | $ | 32.4 |
Exercisable | 32.4 |
Schedule of Restricted Share-Based Award Activity | Restricted share-based award activity (including restricted stock units and deferred stock units) was as follows:
| No. of Shares |  | Wtd. Avg. Grant Date Fair Value per Share
Awards outstanding at September 30, 2020 | 500,237 |  |  | $ | 94.53 |
Granted | 80,109 |  |  | 230.95 |
Vested | (194,105) |  |  | 92.70 |
Forfeited | (10,416) |  |  | 96.54 |
Awards outstanding at September 30, 2021 | 375,825 |  |  | 124.50 |
Schedule of Performance-Based Award Activity | Performance-based award activity was as follows (based on target award amounts):
| No. of Units |  | Wtd. Avg. Grant Date Fair Value per Unit
Awards outstanding at September 30, 2020 | 666,128 |  |  | $ | 92.85 |
Granted | 1,903 |  |  | 236.53 |
Vested (a) | (26,729) |  |  | 87.99 |
Forfeited | (68,745) |  |  | 95.49 |
Awards outstanding at September 30, 2021 | 572,557 |  |  | 95.09 |
Schedule of Stock Options valuation assumptions | The weighted average assumptions for stock option awards granted in fiscal 2021 are as follows:
Expected market price volatility | 31.9 | %
Risk-free interest rate | 0.7 | %
Expected dividend yield | 1.8 | %
Expected life of stock options in years | 6.06
Estimated weighted-average fair value per stock option | $ | 61.15 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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