Other Compensation Liabilities - Schedule of Components of Other Compensation Liabilities (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Share-Based Payment Arrangement [Abstract] | ||
| Share-based payments liability (Note 18) | $ 37.0 | $ 25.4 |
| Profit interests compensation liability | 54.0 | 18.7 |
| Voluntary deferral plan liability (Note 17) | 37.9 | 48.4 |
| Total other compensation liabilities | $ 128.9 | $ 92.5 |