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Business Segments - Segment Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2015 USD ($) segments | Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of Operating Segments | segments |  |  | 2 |
Earned Premiums | $ 536.7 | $ 462.8 | $ 1,468.1 | $ 1,410.7
Net Investment Income | 75.9 | 72.3 | 223.2 | 216.0
Other Income | 0.8 | 0.5 | 2.3 | 0.8
Total Revenues | 615.4 | 539.8 | 1,723.8 | 1,636.9
Net Realized Gains on Sales of Investments | 5.3 | 8.0 | 42.7 | 18.1
Segment Operating Profit (Loss) | 47.8 | (0.2) | 80.8 | 57.7
Net Impairment Losses Recognized in Earnings | (3.3) | (3.8) | (12.5) | (8.7)
Loss from Early Extinguishment of Debt | 0.0 | 0.0 | 9.1 | 0.0
Income from Continuing Operations before Income Taxes | 49.8 | 4.0 | 101.9 | 67.1
Segment Net Operating Income (Loss) | 36.6 | 2.1 | 65.1 | 43.2
Income from Continuing Operations | 38.0 | 4.8 | 78.9 | 49.3
Corporate, Non-Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Segment Operating Profit (Loss) | (12.6) | (7.7) | (36.2) | (24.1)
Segment Net Operating Income (Loss) | (7.9) | (4.6) | (20.6) | (14.7)
Segment Reconciling Items [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other Income | 2.5 | 4.6 | 12.6 | 13.0
Net Realized Gains on Sales of Investments | 5.3 | 8.0 | 42.7 | 18.1
Net Impairment Losses Recognized in Earnings | (3.3) | (3.8) | (12.5) | (8.7)
Loss from Early Extinguishment of Debt | 0.0 | 0.0 | (9.1) | 0.0
Net Realized Gains (Losses) on Sales of Investments, Net of Tax | 3.5 | 5.2 | 27.8 | 11.8
Net Impairment Losses Recognized in Earnings, Net of Tax | (2.1) | (2.5) | (8.1) | (5.7)
Loss from Early Extinguishment of Debt, Net of Tax | 0.0 | 0.0 | (5.9) | 0.0
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Revenues | 610.9 | 531.0 | 1,681.0 | 1,614.5
Segment Operating Profit (Loss) | 60.4 | 7.5 | 117.0 | 81.8
Segment Net Operating Income (Loss) | 44.5 | 6.7 | 85.7 | 57.9
Operating Segments [Member] | Property and Casualty Insurance [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums | 386.1 | 309.7 | 1,023.1 | 949.5
Net Investment Income | 18.3 | 18.5 | 51.7 | 55.6
Other Income | 0.1 | 0.1 | 0.5 | 0.4
Total Revenues | 404.5 | 328.3 | 1,075.3 | 1,005.5
Segment Operating Profit (Loss) | 25.0 | (23.9) | 34.6 | (8.9)
Segment Net Operating Income (Loss) | 21.0 | (13.6) | 31.8 | (0.4)
Operating Segments [Member] | Life and Health Insurance [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earned Premiums | 150.6 | 153.1 | 445.0 | 461.2
Net Investment Income | 55.1 | 49.2 | 159.0 | 147.4
Other Income | 0.7 | 0.4 | 1.7 | 0.4
Total Revenues | 206.4 | 202.7 | 605.7 | 609.0
Segment Operating Profit (Loss) | 35.4 | 31.4 | 82.4 | 90.7
Segment Net Operating Income (Loss) | $ 23.5 | $ 20.3 | $ 53.9 | $ 58.3

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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 + Details
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(c)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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