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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions | Total | Ordinary Shares | Preference Shares | 7.401% Preference Shares | 7.250% Preference Shares | Non-controlling interest | Minority interest buy-out | Additional paid-in capital | Additional paid-in capital Ordinary Shares | Additional paid-in capital Preference Shares | Retained earnings | Retained earnings Ordinary Shares | Retained earnings Preference Shares | Gain/(loss) on derivatives, net of taxes: | Cumulative foreign currency translation adjustments, net of taxes: | Unrealized appreciation on available for sale investments, net of taxes: | Restatement Adjustment Retained earnings
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Preference share redemption costs |  |  |  |  |  |  |  |  |  |  | $ 8.0 |  |  |  |  |  |  |  |
Shareholder's equity beginning balance at Dec. 31, 2016 |  |  | $ 0.1 | $ 0.0 |  |  | $ 1.4 |  | $ 1,259.6 |  |  | $ 2,376.7 |  |  |  | $ (0.5) | $ (27.1) | $ 22.5 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change attributable to non-controlling interest for the year |  | $ (1.3) |  |  |  |  | 1.3 |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  |  | 0.0 |  |  |  |  |  |  | $ 0.5 | 0.0 |  |  |  |  |  |  |  |
Ordinary shares repurchased and canceled |  |  | 0.0 |  |  |  |  |  |  | (30.0) |  |  |  |  |  |  |  |  |
Preference shares redeemed and cancelled |  |  |  |  |  |  |  |  |  |  | (293.2) |  |  |  |  |  |  |  |
Preference shares redemption | [1] |  |  |  |  |  |  |  |  |  | 8.0 |  |  |  | $ (8.0) |  |  |  |
Share-based compensation | [2] |  |  |  |  |  |  |  | 9.8 |  |  |  |  |  |  |  |  |  |
Consideration of minority interest |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |  |  |
Buy-out of minority interest |  | 0.0 |  |  |  |  |  | $ 0.0 | 0.0 |  |  |  |  |  |  |  |  |  |
Net (loss) |  | (266.4) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (56.2) | (36.2) |  |  |  |
Dividends due to non-controlling interest |  |  |  |  |  |  |  |  |  |  |  | (0.1) |  |  |  |  |  |  |
Change for the year, net of income tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (40.6) | (12.8) |
Shareholder's equity ending balance at Dec. 31, 2017 |  | 2,912.9 | 0.1 | 0.0 |  |  | 2.7 |  | 954.7 |  |  | 2,011.3 |  |  |  | 2.1 | (67.7) | 9.7 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retained earnings restatement | [3] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15.6
Preferred Stock, Dividend Rate, Percentage |  |  |  |  | 7.401% | 7.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment | Accounting Standards Update 2016-09 |  |  |  |  |  |  |  |  | 7.9 |  |  | 2.8 | [4] |  |  |  |  |  |
Net change from current period hedged transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.6 |  |  |
Total accumulated other comprehensive income/(loss), net of taxes |  | (55.9) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change attributable to non-controlling interest for the year |  | (1.0) |  |  |  |  | 1.0 |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  |  | 0.0 |  |  |  |  |  |  | 2.7 | 0.0 |  |  |  |  |  |  |  |
Ordinary shares repurchased and canceled |  |  | 0.0 |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |  |
Preference shares redeemed and cancelled |  |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |
Preference shares redemption | [1] |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  | 0.0 |  |  |  |
Share-based compensation | [2] |  |  |  |  |  |  |  | 10.1 |  |  |  |  |  |  |  |  |  |
Consideration of minority interest |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |  |  |
Buy-out of minority interest |  | 0.0 |  |  |  |  |  | 0.0 | 0.0 |  |  |  |  |  |  |  |  |  |
Net (loss) |  | (145.8) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  |  |  |  |  | (42.9) | (30.5) |  |  |  |
Dividends due to non-controlling interest |  |  |  |  |  |  |  |  |  |  |  | (0.1) |  |  |  |  |  |  |
Change for the year, net of income tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12.3 | (76.5) |
Shareholder's equity ending balance at Dec. 31, 2018 |  | 2,640.4 | 0.1 | 0.0 |  |  | 3.7 |  | 967.5 |  |  | 1,791.0 |  |  |  | 0.3 | (55.4) | (66.8) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment | Accounting Standards Update 2016-09 |  |  |  |  |  |  |  |  | 10.1 |  |  | 0.0 | [4] |  |  |  |  |  |
Net change from current period hedged transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1.8) |  |  |
Total accumulated other comprehensive income/(loss), net of taxes |  | (121.9) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net change attributable to non-controlling interest for the year |  | 1.2 |  |  |  |  | (1.2) |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  |  | 0.6 |  |  |  |  |  |  | 0.8 | 241.6 |  |  |  |  |  |  |  |
Ordinary shares repurchased and canceled |  |  | (0.1) |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |  |
Preference shares redeemed and cancelled |  |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |  |
Preference shares redemption | [1] |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  | 0.0 |  |  |  |
Share-based compensation | [2] |  |  |  |  |  |  |  | (9.9) |  |  |  |  |  |  |  |  |  |
Consideration of minority interest |  |  |  |  |  |  |  |  | (0.8) |  |  |  |  |  |  |  |  |  |
Buy-out of minority interest |  | 0.8 |  |  |  |  |  | $ (2.5) | 2.5 |  |  |  |  |  |  |  |  |  |
Net (loss) |  | (241.7) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 | $ (35.9) |  |  |  |
Dividends due to non-controlling interest |  |  |  |  |  |  |  |  |  |  |  | 0.0 |  |  |  |  |  |  |
Change for the year, net of income tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (24.8) | 151.3 |
Shareholder's equity ending balance at Dec. 31, 2019 |  | 2,725.5 | $ 0.6 | $ 0.0 |  |  | $ 0.0 |  | $ 1,201.7 |  |  | 1,514.6 |  |  |  | 4.3 | $ (80.2) | $ 84.5 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment | Accounting Standards Update 2016-09 | [4] |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |  |
Net change from current period hedged transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.0 |  |  |
Total accumulated other comprehensive income/(loss), net of taxes |  | $ 8.6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | The $8.0 million deduction from net income in 2017 is attributable to the reclassification from additional paid-in capital to retained earnings representing the difference between the capital raised upon issuance of the 7.401% and 7.250% Perpetual Non-Cumulative Preference Shares, net of issuance costs, and the final redemption costs of $293.2 million.
[2] | The balance in 2017 includes $7.9 million reclassification from accrued expenses and other payable as a result of the classification of restricted share units as equity following the adoption of ASU 2016-09 -“Compensation — Stock Compensation”. The balance in 2018 of $10.1 million is a reclassification from accrued expenses and other payables as a result of the net settlement of restricted share units following the adoption of ASU 2016-09. The balance in 2019 of $(9.9) million relates to the reclassification between additional paid-in capital to accrued expenses and other payables as a result of the net settlement of taxes on restricted share units.
[3] | Reinsurance premiums payables and retained earnings have been restated by $15.6 million from January 1, 2017 to account for additional ceded premiums on excess of loss ceded reinsurance contracts for periods December 31, 2016 and prior.
[4] | The $2.8 million relates to the cumulative effect-adjustment to opening retained earnings as a result of the classification of restricted share units as equity following the adoption of ASU 2016-09. The adjustment has been applied using a modified retrospective approach.

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