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Treasury Stock and Share-Based Awards (Tables) | 3 Months Ended
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Mar. 31, 2025
Summary of Treasury Stock Activity | Below is a summary of Holdings’ treasury stock activity for the three months ended March 31, 2025:
|  | Number of |  |  |  |
|  | Treasury |  |  |  |
|  | Shares |  |  | Cost |
Balance at January 1, 2025 |  |  | 6.38 |  |  | $ | 103.2 |
Repurchases of common stock (1) |  |  | 7.93 |  |  |  | 201.6 |
Restricted stock withholdings (2) |  |  | 0.60 |  |  |  | 17.1 |
Restricted stock forfeitures (3) |  |  | 0.03 |  |  |  | — |
Balance at March 31, 2025 |  |  | 14.94 |  |  | $ | 321.9 |
(1) Holdings repurchased outstanding common shares under a share repurchase program. (2) Holdings withheld shares as a result of the election by certain employees to satisfy their tax liabilities upon vesting of restricted stock and performance stock units with shares. Holdings determined the number of shares to be withheld based upon market values of Holdings’ common stock on the vesting dates, which ranged from $24.38 to $33.06 per share. (3) Holdings repurchased forfeited restricted shares at a cost of $0.001 per share in accordance with its Long-Term Incentive Plan.
Summary of Restricted Stock Activity | Below is a summary of restricted stock activity for the three months ended March 31, 2025:
|  | Shares of |  |  | Weighted Average |
|  | Restricted |  |  | Grant Date |
|  | Stock |  |  | Fair Value |
Outstanding at January 1, 2025 |  |  | 2.30 |  |  | $ | 15.91 |
Granted |  |  | 0.50 |  |  |  | 27.46 |
Vested |  |  | (1.18 | ) |  |  | 16.50 |
Forfeited |  |  | (0.03 | ) |  |  | 15.69 |
Outstanding and unvested at March 31, 2025 |  |  | 1.59 |  |  | $ | 19.10 |
Performance metrics and measurement period for these performance awards | Below is a summary of the performance stock units at each specified performance achievement levels for these performance awards:
Stock units that vest if performance metrics meet the threshold level (50% of target) |  | 0.18 PSUs
Stock units that vest if performance metrics meet the target level |  | 0.35 PSUs
Stock units that vest if performance metrics meet the maximum level (200% of target) |  | 0.71 PSUs
CUSA |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | Below is a summary of restricted stock award activity recorded for the periods indicated.
|  | Three Months Ended March 31, |
|  | 2025 |  |  | 2024 |
Compensation expense recognized during the period: |  |  |  |  |  |
CUSA employees (1) |  | $ | 4.2 |  |  | $ | 3.8 |
Holdings directors |  |  | 0.3 |  |  |  | 0.4 |
Total recognized by Holdings |  | $ | 4.5 |  |  | $ | 4.2 |
Fair value of restricted stock that vested during the period: |  |  |  |  |  |
CUSA employees |  | $ | 35.1 |  |  | $ | 12.5 |
Holdings directors |  |  | — |  |  |  | — |
Holdings total |  | $ | 35.1 |  |  | $ | 12.5 |
Income tax benefit related to vested restricted stock: |  |  |  |  |  |
CUSA employees |  | $ | 6.7 |  |  | $ | 2.2 |
Holdings directors |  |  | — |  |  |  | — |
Holdings total income tax benefit |  | $ | 6.7 |  |  | $ | 2.2 |
(1) Compensation expense for the three months ended March 31, 2025 includes approximately $0.3 related to a portion of the short-term field incentive compensation plan for 2025 to be settled in restricted stock.
Restricted Stock (Member) |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | As of March 31, 2025, the estimated remaining unrecognized compensation expense related to unvested restricted stock awards was as follows:
|  | Estimated |
|  | Remaining |
|  | Expense |
CUSA employees (1) |  | $ | 26.2 |
Holdings directors |  |  | 0.3 |
Total remaining - Holdings (1) |  | $ | 26.5 |
(1) The weighted average period over which this remaining compensation expense will be recognized by both Holdings and CUSA is approximately 1.8 years.
Performance Shares [Member] |
Summary of Restricted Stock and Restricted Stock Unit Award Activity | Below is a summary of all performance stock unit activity for the periods presented:
|  | Three Months Ended March 31, |
|  | 2025 |  |  | 2024 |
Number of performance stock units that vested during the period |  |  | 0.8 |  |  |  | 0.1 |
Fair value of performance stock units that vested during the period |  | $ | 20.6 |  |  | $ | 2.1 |
Accumulated dividends paid upon vesting of performance stock units |  | $ | 0.1 |  |  | $ | 0.1 |
Compensation expense recognized during the period |  | $ | 3.5 |  |  | $ | 2.2 |
Income tax benefit related to performance stock units |  | $ | 3.6 |  |  | $ | 0.1 |

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