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Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2023
Earnings Per Share [Abstract] |
Summary of Earnings Per Share |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Numerator (in millions): |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 28.9 |  |  | $ | 32.3 |  |  | $ | 62.1 |  |  | $ | 68.8 |
Denominator (in thousands): |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 24,868 |  |  |  | 24,805 |  |  |  | 24,835 |  |  |  | 24,798 |
Dilutive effect of stock options and awards |  |  | 112 |  |  |  | 166 |  |  |  | 175 |  |  |  | 169 |
Denominator for diluted earnings per share |  |  | 24,980 |  |  |  | 24,971 |  |  |  | 25,010 |  |  |  | 24,967 |
Net income per share, basic: |  | $ | 1.16 |  |  | $ | 1.30 |  |  | $ | 2.50 |  |  | $ | 2.77 |
Net income per share, diluted: |  | $ | 1.16 |  |  | $ | 1.29 |  |  | $ | 2.48 |  |  | $ | 2.76 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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