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v3.25.1

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Debt securities, available for sale, allowance for credit losses | $ 0.0 | $ 1.1
Debt securities, available for sale, cost | 4,617.0 | 5,143.8
Debt securities, trading, cost | 140.9 | 187.3
Short-term investments, cost | 48.2 | 95.3
Other long-term investments, cost | 437.9 | 438.2
Related party investments at fair value | $ 220.1 | $ 217.2
Common share, shares issued (in shares) | 116,020,526 | 116,429,057
Common share, shares outstanding (in shares) | 116,020,526 | 116,429,057
Series B preference shares |  |
Preference shares, par value (in dollars per share) | $ 0.10 | $ 0.10
Preference shares, shares authorized (in shares) | 8,000,000 | 8,000,000
Preference shares, shares issued (in shares) | 8,000,000 | 8,000,000

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