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CONSOLIDATED BALANCE SHEETS Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Fixed income securities, available for sale amortized cost | $ 5,201.2 | $ 5,620.1
Trading Securities, Debt, Amortized Cost | 1,634.9 | 1,264.8
Equity securities, trading, cost | 414.8 | 554.3
Available-for-sale Securities, Short-term Investments, Amortized Cost | 90.0 | 145.3
Short-term investments, trading, amortized cost | 73.0 | 185.4
Cash and cash equivalents, within VIEs | 166.6 | 291.3
Catastrophe bonds trading, at fair value | $ 33.5 | $ 42.5
Ordinary shares, par value | $ 0.0015144558 | $ 0.0015144558
Ordinary shares, issued | 59,474,085 | 59,774,464
Preference shares, par value | $ 0.0015144558 | $ 0.0015144558
5.950% Preference Shares |  |
Preference shares, issued | 11,000,000 | 11,000,000
Preference shares, rate | 5.95% | 5.95%
Preference shares, par value | $ 0.0015144558 | $ 0.0015144558
7.401% Preference Shares |  |
Preference shares, issued | 0 | 5,327,500
Preference shares, rate | 7.401% | 7.401%
Preference shares, par value |  | $ 0.0015144558
7.250% Preference Shares |  |
Preference shares, issued | 0 | 6,400,000
Preference shares, rate | 7.25% | 7.25%
Preference shares, par value |  | $ 0.0015144558
5.625% Preference Shares |  |
Preference shares, issued | 10,000,000 | 10,000,000
Preference shares, rate | 5.625% | 5.625%
Preference shares, par value | $ 0.0015144558 | $ 0.0015144558

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