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v3.22.2.2

Stock-Based Compensation | 9 Months Ended
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Sep. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Stock-Based Compensation | Stock-Based Compensation Stock-based compensation cost by award type follows:
(in millions) |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Stock option awards |  | $ | 2.3 |  |  | $ | 1.9 |  |  | $ | 7.7 |  |  | $ | 7.8 |
Restricted stock awards |  | 1.3 |  |  | 1.7 |  |  | 6.3 |  |  | 5.6 |
Performance share awards |  | 2.0 |  |  | 1.7 |  |  | 7.4 |  |  | 6.0 |
Stock appreciation rights |  | — |  |  | — |  |  | — |  |  | 9.0 |
Total stock-based compensation cost incurred |  | 5.6 |  |  | 5.3 |  |  | 21.4 |  |  | 28.4 |
Capitalized cost during the period |  | — |  |  | — |  |  | — |  |  | (9.3) |
Amortization of capitalized cost during the period |  | — |  |  | — |  |  | — |  |  | 14.3 |
Total stock-based compensation expense |  | $ | 5.6 |  |  | $ | 5.3 |  |  | $ | 21.4 |  |  | $ | 33.4 |

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