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SCHEDULE II CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT (Details 2) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT |  |  |  |  |  |  |  |  |  |  |
Fair value investments | $ 5,039.7 |  |  |  | $ 4,050.9 |  |  |  | $ 5,039.7 | $ 4,050.9 | $ 3,343.6
(Loss) revenues (including realized gains and losses) | 268.2 | $ 365.0 | $ 358.2 | $ 369.3 | 602.6 | $ 296.1 | $ 368.7 | $ 354.3 | 1,360.7 | 1,621.7 | 1,411.1
Expenses | 335.0 | 345.0 | 360.3 | 360.8 | 356.3 | 383.0 | 373.8 | 351.3 | 1,401.1 | 1,464.4 | 1,440.5
Pre-tax loss | (66.8) | 20.0 | (2.1) | 8.5 | 246.3 | (86.9) | (5.1) | 3.0 | (40.4) | 157.3 | (29.4)
Income Tax Expense (Benefit) | 23.0 | 6.7 | 6.0 | 9.7 | 1.0 | 1.6 | 2.2 | (4.6) | 45.4 | 0.2 | 14.8
Net income (loss) from continuing operations | (43.8) | 26.7 | 3.9 | 18.2 | 247.3 | (85.3) | (2.9) | (1.6) | 5.0 | 157.5 | (14.6)
Net (loss) income from discontinued operations, net of tax | (6.8) | 61.9 | 358.6 | 1.1 | 19.6 | 6.5 | (0.5) | 71.3 | (0.3) | 78.7 | 260.6
Net income attributable to White Mountains’s common shareholders | (33.3) | 91.7 | 341.1 | 13.0 | 267.9 | (58.9) | 4.3 | 84.3 | 412.5 | 297.6 | 312.2
Comprehensive income attributable to White Mountains’ common shareholders |  |  |  |  |  |  |  |  | 557.8 | 197.2 | 210.6
Computation of net income (loss) available to common shareholders: |  |  |  |  |  |  |  |  |  |  |
Net income attributable to White Mountains’s common shareholders | (33.3) | $ 91.7 | $ 341.1 | $ 13.0 | 267.9 | $ (58.9) | $ 4.3 | $ 84.3 | 412.5 | 297.6 | 312.2
White Mountains Insurance Group Ltd. |  |  |  |  |  |  |  |  |  |  |
CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT |  |  |  |  |  |  |  |  |  |  |
(Loss) revenues (including realized gains and losses) |  |  |  |  |  |  |  |  | (1.0) | 5.0 | 0.3
Expenses |  |  |  |  |  |  |  |  | 68.2 | 59.9 | 32.3
Pre-tax loss |  |  |  |  |  |  |  |  | (69.2) | (54.9) | (32.0)
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  | (0.5) | 0.0 | 0.9
Net income (loss) from continuing operations |  |  |  |  |  |  |  |  | (69.7) | (54.9) | (31.1)
Net (loss) income from discontinued operations, net of tax |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 13.9
Equity in earnings (losses) from consolidated and unconsolidated affiliates |  |  |  |  |  |  |  |  | 482.2 | 352.5 | 329.4
Net income attributable to White Mountains’s common shareholders |  |  |  |  |  |  |  |  | 412.5 | 297.6 | 312.2
Other comprehensive income (loss), after-tax |  |  |  |  |  |  |  |  | 145.3 | (100.4) | (101.6)
Comprehensive income attributable to White Mountains’ common shareholders |  |  |  |  |  |  |  |  | 557.8 | 197.2 | 210.6
Computation of net income (loss) available to common shareholders: |  |  |  |  |  |  |  |  |  |  |
Net income attributable to White Mountains’s common shareholders |  |  |  |  |  |  |  |  | 412.5 | 297.6 | $ 312.2
Fair value measured on a recurring basis |  |  |  |  |  |  |  |  |  |  |
CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT |  |  |  |  |  |  |  |  |  |  |
Fair value investments | 5,195.9 |  |  |  | 4,134.4 |  |  |  | 5,195.9 | 4,134.4 |
Level 3 | Fair value measured on a recurring basis |  |  |  |  |  |  |  |  |  |  |
CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT |  |  |  |  |  |  |  |  |  |  |
Fair value investments | 177.7 |  |  |  | $ 239.5 |  |  |  | 177.7 | $ 239.5 |
Level 3 | Forward Contracts [Member] | Fair value measured on a recurring basis |  |  |  |  |  |  |  |  |  |  |
CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT |  |  |  |  |  |  |  |  |  |  |
Fair value investments | $ (1.2) |  |  |  |  |  |  |  | $ (1.2) |  |

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