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Schedule 2 - Parent Company Financial Statements - Statements of Income (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Investment Income | $ 79.4 | $ 75.9 | $ 76.7 | $ 70.6 | $ 93.1 | $ 72.3 | $ 72.6 | $ 71.1 | $ 302.6 | $ 309.1 | $ 314.7
Net Realized Gains (Losses) on Sales of Investments | 9.4 | 5.3 | 34.0 | 3.4 | 21.0 | 8.0 | 3.5 | 6.6 | 52.1 | 39.1 | 99.1
Net Impairment Losses Recognized in Earnings | (14.7) | (3.3) | (2.2) | (7.0) | (6.5) | (3.8) | (4.1) | (0.8) | (27.2) | (15.2) | (13.9)
Total Revenues | 617.0 | 615.4 | 609.2 | 499.2 | 559.7 | 539.8 | 542.5 | 554.6 | 2,340.8 | 2,196.6 | 2,426.5
Loss from Early Extinguishment of Debt | 0.0 | 0.0 | 0.0 | 9.1 |  |  |  |  | 9.1 | 0.0 | 0.0
Total Expenses | 618.6 | 565.6 | 574.9 | 481.4 | 466.6 | 535.8 | 531.3 | 502.7 | 2,240.5 | 2,036.4 | 2,112.1
Income Tax Benefit | 2.9 | (11.8) | (6.9) | (4.3) | (29.8) | 0.8 | (1.9) | (16.7) | (20.1) | (47.6) | (99.9)
Net Income | $ 4.6 | $ 37.9 | $ 29.7 | $ 13.5 | $ 65.4 | $ 4.7 | $ 9.3 | $ 35.1 | 85.7 | 114.5 | 217.7
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  | 1.7 | 0.9 | 0.2
Net Realized Gains (Losses) on Sales of Investments |  |  |  |  |  |  |  |  | (0.1) | (0.2) | 0.6
Net Impairment Losses Recognized in Earnings |  |  |  |  |  |  |  |  | (1.6) | (1.7) | 0.0
Total Revenues |  |  |  |  |  |  |  |  | 0.0 | (1.0) | 0.8
Interest Expense |  |  |  |  |  |  |  |  | 47.3 | 47.9 | 39.0
Loss from Early Extinguishment of Debt |  |  |  |  |  |  |  |  | 9.1 | 0.0 | 0.0
Other Operating Expenses |  |  |  |  |  |  |  |  | 17.6 | 2.7 | 21.6
Total Expenses |  |  |  |  |  |  |  |  | 74.0 | 50.6 | 60.6
Loss before Income Taxes and Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | (74.0) | (51.6) | (59.8)
Income Tax Benefit |  |  |  |  |  |  |  |  | 26.5 | 18.9 | 20.8
Loss before Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | (47.5) | (32.7) | (39.0)
Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | 133.2 | 147.2 | 256.7
Net Income |  |  |  |  |  |  |  |  | $ 85.7 | $ 114.5 | $ 217.7

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