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Segment Information - Pre-tax income (loss) from exited business (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Pre-tax income (loss) from exited business: |  |  |
Change in fair value of funds withheld embedded derivative |  | $ (209.7) | $ 197.0
Net realized capital gains (losses) on funds withheld assets | [1] | 28.0 | 47.5
Reconciling items |  |  |
Pre-tax income (loss) from exited business: |  |  |
Change in fair value of funds withheld embedded derivative |  | (209.7) | 197.0
Net realized capital gains (losses) on funds withheld assets |  | 28.0 | 47.5
Amortization of reinsurance gain (loss) |  | (26.4) | (10.1)
Other impacts of exited business |  | (106.2) | (36.8)
Total pre-tax income (loss) from exited business |  | $ (314.3) | $ 197.6
[1] | Includes realized and unrealized gains (losses). See Note 4, Investments, for further details.

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