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Common Stock and Stock-Based Compensation | 6 Months Ended
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Jun. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Share-based Payment Arrangement [Text Block] | Stock-based compensation expense totaled approximately $5.4 million and $10.7 million for the three and six months ended June 30, 2025, respectively. Stock-based compensation expense totaled approximately $5.9 million and $10.6 million for the three and six months ended June 30, 2024, respectively. The Company's annual grants of share-based awards generally occur in the first and second quarters under our Fifth Amended and Restated Stock Option and Incentive Plan. The following table summarizes stock-based compensation awards granted during the six months ended June 30, 2025:
| Number of Shares Granted |  | Weighted Average Grant-Date Fair Value per Award
Restricted stock units | 454,657 |  |  | $ | 26.96 |
Restricted stock awards | 28,388 |  |  | $ | 26.95 |
Performance units | 225,192 |  |  | $ | 32.73 |
The fair value of restricted stock units and restricted stock awards ("RSAs") granted is based on the Company's closing stock price on the date of grant. For the performance units granted during the six months ended June 30, 2025 for which the payout is based on relative total shareholder return, the fair value was estimated at the date of grant using a Monte Carlo simulation with assumptions that reflect market conditions at the date of grant, including stock price, risk-free interest rate, expected term, expected volatility, and dividend yield. For the performance units granted during the six months ended June 30, 2025 for which the payout is based on return on equity, the fair value is based on the Company's closing stock price on the date of grant, adjusted to exclude the cumulative value of dividends over the three-year vesting period as these units do not earn dividend equivalents.

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