Segmented Information - Corporate Overhead (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Segmented Information | ||
| Corporate overhead and other | $ 480.5 | $ 450.2 |
| Operating segments | ||
| Segmented Information | ||
| Corporate overhead and other | 157.3 | 182.8 |
| Intercompany insurance revenue | ||
| Segmented Information | ||
| Holding company interest and dividends | (8.0) | 15.9 |
| Holding company share of profit of associates | (81.4) | (96.8) |
| Investment management and administration fee income and other | $ (233.8) | $ (186.5) |