Segment Information - Pre-tax income (loss) from exited business (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Pre-tax income (loss) from exited business: | ||||||
| Change in fair value of funds withheld embedded derivative | $ (104.4) | $ 20.3 | $ 73.0 | $ (189.4) | ||
| Net realized capital gains (losses) on funds withheld assets | [1] | (8.1) | 3.7 | 1.3 | 31.7 | |
| Reconciling items | ||||||
| Pre-tax income (loss) from exited business: | ||||||
| Change in fair value of funds withheld embedded derivative | (104.4) | 20.3 | 73.0 | (189.4) | ||
| Net realized capital gains (losses) on funds withheld assets | (8.1) | 3.7 | 1.3 | 31.7 | ||
| Amortization of reinsurance gain (loss) | (18.5) | (20.4) | (38.2) | (46.8) | ||
| Other impacts of exited business | (35.5) | (36.7) | (70.9) | (142.9) | ||
| Total pre-tax income (loss) from exited business | $ (166.5) | $ (33.1) | $ (34.8) | $ (347.4) | ||
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