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Subsequent Events (Details) (DaVinciRe, USD $) In Millions, unless otherwise specified | Jun. 30, 2014 | Jan. 03, 2014 | Dec. 31, 2013 | Jan. 02, 2013 | Dec. 31, 2012 | Sep. 30, 2013 Redeemable Noncontrolling Interest | Jul. 02, 2014 Subsequent Event | Jul. 02, 2014 Subsequent Event Redeemable Noncontrolling Interest
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Subsequent Event [Line Items] |  |  |  |  |  |  |  |
Issuance of equity to third party investors |  |  |  |  |  | $ 77.4 |  | $ 38.9
Parent company ownership in redeemable noncontrolling interest | 26.50% | 26.50% | 27.30% | 32.90% | 30.80% |  | 23.40% |

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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