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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Net Income Per Share | The following table sets forth the computation of basic and diluted net income per share (in millions of dollars, except share and per share amounts):
|  | Quarter Ended September 30, |  |  | Nine Months Ended June 30, |
|  | 2025 |  |  | 2024 As Adjusted 1 |  |  | 2025 |  |  | 2024 As Adjusted 1 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders 2 |  | $ | 39.5 |  |  | $ | 8.8 |  |  | $ | 84.3 |  |  | $ | 45.9 |
Denominator – Weighted-average common shares outstanding (in thousands): |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 16,192 |  |  |  | 16,087 |  |  |  | 16,156 |  |  |  | 16,062 |
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares 3 |  |  | 420 |  |  |  | 248 |  |  |  | 355 |  |  |  | 229 |
Diluted |  |  | 16,612 |  |  |  | 16,335 |  |  |  | 16,511 |  |  |  | 16,291 |
Net income per common share, Basic: |  | $ | 2.44 |  |  | $ | 0.54 |  |  | $ | 5.22 |  |  | $ | 2.85 |
Net income per common share, Diluted: |  | $ | 2.38 |  |  | $ | 0.54 |  |  | $ | 5.10 |  |  | $ | 2.81 |
1. Adjusted to reflect the retrospective change in inventory valuation methodology from LIFO to WAC. See Note 14 for further discussion. 2. Represents Net income less distributed and undistributed earnings allocated to non-vested restricted stock awards that contain non-forfeitable rights to dividends. 3. Quantities in the following discussion are denoted in whole shares. During the quarter and nine months ended September 30, 2025 approximately 1 and 196 shares, respectively, were excluded from the weighted-average diluted shares computation as their inclusion would have been anti‑dilutive. For the quarter and nine months ended September 30, 2024, approximately 120 and 700 shares, respectively, were excluded from the weighted-average diluted shares computation as their inclusion would have been anti‑dilutive.

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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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