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v3.19.1

Business Segments - Segment Information (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 USD ($) segment | Mar. 31, 2018 USD ($)
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | $ 123.4 | $ 70.4
Number of Operating Segments | segment | 3 |
Earned Premiums | $ 1,074.8 | 609.8
Net Investment Income | 82.7 | 79.2
Other Income | 1.9 | 1.2
Total Revenues | 1,236.3 | 693.0
Income from Change in Fair Value of Equity and Convertible Securities | 64.4 | 0.7
Net Realized Gains on Sales of Investments | 16.1 | 2.6
Net Impairment Losses Recognized in Earnings | (3.6) | (0.5)
Other Noncash Income (Expense) | 1.2 | 2.0
Total Before Income Taxes | 194.7 | 67.0
Segment Net Operating Income (Loss) | 98.9 | 57.5
Change in Fair Value of Equity and Convertible Securities | 50.9 | 0.6
Income from Continuing Operations | 155.3 | 53.6
Corporate, Non-Segment [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | (8.6) | (5.5)
Operating Income (Loss), Net of Tax | (6.6) | (3.5)
Segment Reconciling Items [Member] |  |
Segment Reporting Information [Line Items] |  |
Net Realized Gains on Sales of Investments | 16.1 | 2.6
Net Impairment Losses Recognized in Earnings | (3.6) | (0.5)
Business Combination, Acquisition Related Costs | (5.6) | (6.2)
Net Realized Gains (Losses) on Sales of Investments, Net of Tax | 12.7 | 2.1
Net Impairment Losses Recognized in Earnings, Net of Tax | 2.8 | 0.4
Acquisition Related Transaction, Integration and Other Costs | (4.4) | (6.2)
Operating Segments [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | 132.0 | 75.9
Total Revenues | 1,158.2 | 688.2
Income from Continuing Operations | 105.5 | 61.0
Operating Segments [Member] | Preferred Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | 3.3 | 16.6
Earned Premiums | 185.6 | 176.8
Net Investment Income | 8.3 | 13.7
Total Revenues | 193.9 | 190.5
Segment Net Operating Income (Loss) | 2.8 | 13.5
Operating Segments [Member] | Property and Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums |  | 278.4
Net Investment Income |  | 9.9
Other Income |  | 0.3
Total Revenues | 751.6 | 288.6
Operating Segments [Member] | Specialty Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | 99.4 | 29.0
Earned Premiums | 729.3 |
Net Investment Income | 21.5 |
Other Income | 0.8 |
Operating Income (Loss), Net of Tax | 79.6 | 23.4
Operating Segments [Member] | Life and Health Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Operating Income (Loss) | 29.3 | 30.3
Earned Premiums | 159.9 | 154.6
Net Investment Income | 51.7 | 53.7
Other Income | 1.1 | 0.8
Total Revenues | 212.7 | 209.1
Segment Net Operating Income (Loss) | 23.1 | 24.1
Homeowners [Member] | Operating Segments [Member] | Preferred Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums | 60.3 |
Other Personal Lines [Member] | Operating Segments [Member] | Preferred Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums | 9.9 | 10.1
Operating Segments [Member] | Homeowners [Member] | Preferred Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums |  | 61.8
Operating Segments [Member] | Preferred Automobile [Member] | Preferred Property & Casualty Insurance [Member] |  |
Segment Reporting Information [Line Items] |  |
Earned Premiums | $ 115.4 | $ 104.9

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