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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Revenues: |  |
Earned insurance and reinsurance premiums | $ 499.0 | $ 467.8
Net investment income | 41.8 | 49.5
Net realized and unrealized investment gains (losses) | 58.6 | (9.2)
Other revenue | 31.2 | 21.5
Total revenues | 630.6 | 529.6
Expenses: |  |
Loss and loss adjustment expenses | 262.7 | 358.4
Insurance and reinsurance acquisition expenses | 108.4 | 90.7
Other underwriting expenses | 74.8 | 73.1
General and administrative expenses | 45.5 | 28.0
Interest expense on debt | 10.9 | 13.1
Total expenses | 502.3 | 563.3
Pre-tax income (loss) from continuing operations | 128.3 | (33.7)
Income tax (expense) benefit | (28.0) | 7.7
Net income (loss) from continuing operations | 100.3 | (26.0)
Net income from discontinued operations, net of tax | 0.1 | 2.5
Income (loss) before equity in earnings of unconsolidated affiliates | 100.4 | (23.5)
Equity in earnings of unconsolidated affiliates | 10.2 | 6.7
Net income (loss) | 110.6 | (16.8)
Net income attributable to noncontrolling interests | (16.8) | (11.4)
Net income (loss) attributable to White Mountains' common shareholders | 93.8 | (28.2)
Comprehensive income (loss), net of tax: |  |
Change in equity in net unrealized losses from investments in unconsolidated affiliates | (1.2) |
Change in foreign currency translation and other | 23.5 | 62.0
Comprehensive income | 116.1 | 33.8
Comprehensive income attributable to noncontrolling interests | 0 |
Comprehensive income attributable to White Mountains' common shareholders | $ 116.1 | $ 33.8
Basic income (loss) per share |  |
Continuing operations (in dollars per share) | $ 12.59 | $ (3.82)
Discontinued operations (in dollars per share) | $ 0.02 | $ 0.31
Total consolidated operations (in dollars per share) | $ 12.61 | $ (3.51)
Diluted income (loss) per share |  |
Continuing operations (in dollars per share) | $ 12.59 | $ (3.82)
Discontinued operations (in dollars per share) | $ 0.02 | $ 0.31
Total consolidated operations (in dollars per share) | $ 12.61 | $ (3.51)
Dividends declared per White Mountains' common share (in dollars per share) | $ 1.00 | $ 1.00

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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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