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v3.3.1.900

Discontinued Operations Discontinued Operations (Interest Rate Cap) (Details) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May. 31, 2007 shares | Dec. 31, 2015 USD ($) Rating | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Sirius Group | Interest Rate Cap |  |  |  |
Derivative [Line Items] |  |  |  |
basis points |  | 3.95% |  |
Derivative, Fair Value, Net |  | $ 1.9 | $ 4.1 | $ 11.1
Derivative Collateral Right to Reclaim |  | $ 1.9 |  |
S&P Credit Ratings | Rating |  | 21 |  |
Change in fair value of derivatives, included in other revenue |  | $ 2.2 | $ 7.0 |
years of interest rate cap |  | 5 years |  |
Derivative, Cap Interest Rate |  | 8.30% |  |
Derivative, Cost of Hedge |  | $ 9.9 |  |
Barclays [Member] | Standard & Poor's, A Rating [Member] | Sirius Group | Interest Rate Cap |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Collateral Right to Reclaim |  | 1.3 |  |
Nordea Bank Finland [Member] | Standard & Poor's, AA- Rating [Member] | Sirius Group | Interest Rate Cap |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Collateral Right to Reclaim |  | $ 0.6 |  |
Preferred stocks | Sirius Internation Group Ltd |  |  |  |
Derivative [Line Items] |  |  |  |
Preference shares floating rate of dividend amount in excess of libor | 3.20% |  |  |
Preferred stocks | Sirius Group | Interest Rate Cap |  |  |  |
Derivative [Line Items] |  |  |  |
Preferred stock dividend rate | 7.506% |  |  |
Preference shares reference rate for dividend | 3 |  |  |
Sale of Stock, Number of Shares Issued in Transaction | shares | 250,000,000.0 |  |  |

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