Share-Based Compensation - Compensation Expense for Share-Based Awards (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total share-based compensation expense | $ 17.0 | $ 10.3 | $ 32.3 | $ 28.1 |
| Income tax benefit | (4.2) | (2.6) | (8.0) | (7.0) |
| Share-based compensation expense, net of tax benefit | 12.8 | 7.7 | 24.3 | 21.1 |
| Restricted Stock | ||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total share-based compensation expense | 6.7 | 6.1 | 14.0 | 20.0 |
| Restricted Stock Units | ||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total share-based compensation expense | 2.4 | 0.0 | 3.2 | 0.0 |
| Performance Units | ||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total share-based compensation expense | $ 7.9 | $ 4.2 | $ 15.1 | $ 8.1 |