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v3.25.2

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Deferred Compensation [Member] | Treasury Stock, Preferred | Treasury Stock, Common
--- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Held In Trust For Deferred Compensation Plan |  | 108,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 1.230 |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances (shares) at Dec. 31, 2023 | [1],[2] |  | 22,235,000 |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances at Dec. 31, 2023 |  | $ 1,246.1 | $ 10.8 | [1] | $ 749.4 |  | $ 488.7 |  | $ (2.8) |  | $ 9.1 |  |  | $ (9.1) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 64.4 |  |  |  |  | 64.4 |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | 1.2 |  |  |  |  |  |  | 1.2 |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  | 1.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend declared |  |  |  |  |  |  | (27.6) |  |  |  |  |  |  |  |
Retirement savings plan and dividend reinvestment plan (shares) | [1],[2],[3] |  | 28,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During The Period Value Retirement Savings Plan And Dividend Reinvestment Plan | [3] | 3.0 | $ 0.1 | [1] | 2.9 |  |  |  |  |  |  |  |  |  |
Share-based compensation (shares) | [1],[2],[4],[5] |  | 36,000 |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation and tax benefit | [4],[5] |  | $ 0.0 | [1] | 3.5 |  |  |  |  |  |  |  |  |  |
Treasury stock activities | [2] |  |  |  |  |  |  |  |  |  | 0.6 |  |  | (0.6) |
Ending Balances (shares) at Jun. 30, 2024 | [1],[2] |  | 22,299,000 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balances at Jun. 30, 2024 |  | $ 1,290.6 | $ 10.9 | [1] | 755.8 |  | 525.5 |  | (1.6) |  | 9.7 |  |  | (9.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  | 14,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 0.640 |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances (shares) at Mar. 31, 2024 | [1],[2] |  | 22,267,000 |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances at Mar. 31, 2024 |  | $ 1,280.9 | $ 10.8 | [1] | 750.2 |  | 521.7 |  | (1.8) |  | 9.6 |  | $ (9.6) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 18.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | 0.2 |  |  |  |  |  |  | 0.2 |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  | 0.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend declared |  | (14.4) |  |  |  |  | (14.4) |  |  |  |  |  |  |  |
Retirement savings plan and dividend reinvestment plan (shares) | [1],[2],[3] |  | 25,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During The Period Value Retirement Savings Plan And Dividend Reinvestment Plan | [3] | 2.7 | $ 0.1 | [1] | 2.6 |  |  |  |  |  |  |  |  |  |
Share-based compensation (shares) | [1],[2],[4],[5] |  | 7,000 |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation and tax benefit | [4],[5] | 3.0 | $ 0.0 | [1] | 3.0 |  |  |  |  |  |  |  |  |  |
Treasury stock activities |  |  |  |  |  |  | 0.0 |  |  |  | 0.1 |  |  | (0.1) |
Ending Balances (shares) at Jun. 30, 2024 | [1],[2] |  | 22,299,000 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balances at Jun. 30, 2024 |  | $ 1,290.6 | $ 10.9 | [1] | 755.8 |  | 525.5 |  | (1.6) |  | 9.7 |  |  | (9.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Held In Trust For Deferred Compensation Plan |  | 113,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized |  | 2,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share |  | $ 10.00 |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Held In Trust For Deferred Compensation Plan |  | 114,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 1.325 |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances (shares) at Dec. 31, 2024 | [1],[2],[6] |  | 22,899,000 |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances at Dec. 31, 2024 |  | $ 1,390.2 | $ 11.1 | [1],[6] | 830.5 | [6] | 550.3 | [6] | (1.7) | [6] | 9.8 | [6] |  | (9.8) | [6]
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 74.8 |  |  |  |  | 74.8 |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | (1.1) |  |  |  |  |  |  | (1.1) |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  | (1.1) |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend declared |  |  |  |  |  |  | (31.0) |  |  |  |  |  |  |  |
Retirement savings plan and dividend reinvestment plan (shares) | [1],[2],[3] |  | 486,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During The Period Value Retirement Savings Plan And Dividend Reinvestment Plan | [3] |  | $ 0.3 | [1] | 60.9 |  |  |  |  |  |  |  |  |  |
Share-based compensation (shares) | [1],[2],[4],[5] |  | 35,000 |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation and tax benefit | [4],[5] |  | $ 0.0 | [1] | 5.0 |  |  |  |  |  |  |  |  |  |
Treasury stock activities | [2] |  |  |  |  |  |  |  |  |  | 2.7 |  |  | (2.7) |
Ending Balances (shares) at Jun. 30, 2025 | [1],[2] |  | 23,420,000 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balances at Jun. 30, 2025 |  | $ 1,499.1 | $ 11.4 | [1] | 896.4 |  | 594.1 |  | (2.8) |  | 12.5 |  |  | (12.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  | 8,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued, Value, During The Period Shares Retirement Savings Plan And Dividend Reinvestment Plan | [3] | $ 61.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared |  | $ 0.685 |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances (shares) at Mar. 31, 2025 | [1],[2] |  | 23,089,000 |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balances at Mar. 31, 2025 |  | $ 1,447.3 | $ 11.2 | [1] | 852.0 |  | 586.4 |  | (2.3) |  | 12.2 |  | $ (12.2) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 23.9 |  |  |  |  | 23.9 |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | (0.5) |  |  |  |  |  |  | (0.5) |  |  |  |  |  |
Other Comprehensive Income (Loss), Net of Tax |  | (0.5) |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend declared |  | (16.2) |  |  |  |  | (16.2) |  |  |  |  |  |  |  |
Retirement savings plan and dividend reinvestment plan (shares) | [1],[2],[3] |  | 325,000 |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During The Period Value Retirement Savings Plan And Dividend Reinvestment Plan | [3] | 41.4 | $ 0.2 | [1] | 41.2 |  |  |  |  |  |  |  |  |  |
Share-based compensation (shares) | [1],[2],[4],[5] |  | 6,000 |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation and tax benefit | [4],[5] | 3.2 | $ 0.0 | [1] | 3.2 |  |  |  |  |  |  |  |  |  |
Treasury stock activities |  |  |  |  |  |  | 0.0 |  |  |  | 0.3 |  |  | (0.3) |
Ending Balances (shares) at Jun. 30, 2025 | [1],[2] |  | 23,420,000 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balances at Jun. 30, 2025 |  | $ 1,499.1 | $ 11.4 | [1] | $ 896.4 |  | $ 594.1 |  | $ (2.8) |  | $ 12.5 |  |  | $ (12.5) |
Preferred Stock, Shares Authorized |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share |  | $ 10.00 |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Held In Trust For Deferred Compensation Plan |  | 127,000 |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | 2.0 million shares of preferred stock at $0.01 par value have been authorized. No preferred shares have been issued or are outstanding; accordingly, no information has been included in the Condensed Consolidated Statements of Stockholders’ Equity.
[2] | Includes 127 thousand, 114 thousand, 113 thousand, and 108 thousand shares at June 30, 2025, December 31, 2024, June 30, 2024 and December 31, 2023, respectively, held in a Rabbi Trust related to our Non-Qualified Deferred Compensation Plan.
[3] | Includes shares issued under the Retirement Savings Plan, DRIP and/or ATM program, as applicable.
[4] | Includes amounts for shares issued for directors’ compensation.
[5] | The shares issued under the SICP are net of shares withheld for employee taxes. For the six months ended June 30, 2025 and 2024, we withheld 8 thousand and 14 thousand shares, respectively, for employee taxes.
[6] |

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