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Investments in Unconsolidated Affiliates (Tables) | 3 Months Ended
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Mar. 31, 2016
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Changes in Investments in Unconsolidated Affiliates | The following table summarizes amounts recorded by White Mountains under the equity method relating to its investment in Symetra for the three months ended March 31, 2015:
|  | Three Months Ended
Millions |  | March 31, 2015
Equity method carrying value of investment in Symetra as of December 31, 2014 |  | $ | 411.4 |
Equity in earnings (1)(2) |  | 7.2 |
Equity in net unrealized gains from Symetra’s fixed maturity portfolio (3) |  | 30.9 |
Dividends received |  | (2.2 | )
Equity method carrying value of investment in Symetra as of March 31, 2015(4) |  | $ | 447.3 |
(1) Equity in earnings excludes tax expense of $0.4. (2) Equity in earnings includes $0.7 increase relating to the pre-tax amortization of the Symetra common share basis difference. (3) Net unrealized gains includes $2.9 increase relating to the pre-tax amortization of the Symetra common share basis difference. (4) Includes White Mountains’s equity in net unrealized gains from Symetra’s fixed maturity portfolio of $68.4 as of March 31, 2015, which excludes tax expense of $4.6.

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