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Earnings per Share (Tables) | 9 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Calculation of Numerator and Denominator in Earnings Per Share | The following is a reconciliation of the numerator and denominator of the diluted earnings per share computations for the periods presented below.
| Three Months Ended June 30, |  | Nine Months Ended June 30,
(in millions, except share amounts) | 2021 |  | 2020 |  | 2021 |  | 2020
Numerator: |  |  |  |  |  |  |
Net income | $ | 34.2 |  |  | $ | 36.6 |  |  | $ | 109.0 |  |  | $ | 92.2 |
Less: Allocation to participating securities | (1.1) |  |  | (0.9) |  |  | (3.2) |  |  | (2.1) |
Net income allocated to common stockholders | $ | 33.1 |  |  | $ | 35.7 |  |  | $ | 105.8 |  |  | $ | 90.1 |
Denominator: |  |  |  |  |  |  |
Weighted average number of: |  |  |  |  |  |  |
Common shares outstanding | 19,255,452 |  |  | 18,807,104 |  |  | 19,102,244 |  |  | 18,809,823 |
Dilutive potential common shares outstanding: |  |  |  |  |  |  |
Share-based awards | 599,774 |  |  | 296,062 |  |  | 567,153 |  |  | 312,858 |
Diluted weighted-average common shares | 19,855,226 |  |  | 19,103,166 |  |  | 19,669,397 |  |  | 19,122,681 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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