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v3.24.2

Equity Incentive Program - Stock Options and SSARs (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Share-based Payment Arrangement, Expense | $ 7.4 | $ 7.1 | $ 14.1 | $ 14.9
Share-based Payment Arrangement, Expense, Tax Benefit | 0.3 | 0.3 | 3.0 | 3.2
Share-Based Payment Arrangement, Expense, after Tax | 7.1 | 6.8 | 11.1 | 11.7
Stock Options, Weighted Average Exercise Price |  |  |  |
Share-based Payment Arrangement, Expense, Tax Benefit | 0.3 | $ 0.3 | 3.0 | $ 3.2
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 0.2 |  | $ 0.2 |
Stock Options, Number of Shares |  |  |  |
Beginning balance |  |  | 2,104,356 |
Expired |  |  | (331,709) |
Ending balance | 1,762,322 |  | 1,762,322 |
Exercisable | 1,705,929 |  | 1,705,929 |
Stock Options, Weighted Average Exercise Price |  |  |  |
Beginning balance |  |  | $ 17.15 |
Expired |  |  | 19.27 |
Ending balance | $ 16.77 |  | 16.77 |
Exercisable | $ 16.62 |  | 16.62 |
Exercised |  |  | $ 15.10 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period |  |  | (10,325) |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  | 7 months 6 days |

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