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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, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Investment Income | $ 102.7 | $ 92.1 | $ 67.8 | $ 85.6 | $ 93.9 | $ 91.7 | $ 96.0 | $ 82.7 | $ 348.2 | $ 364.3 | $ 340.9
Income (Loss) from Change in Fair Value of Equity and Convertible Securities | 73.1 | 45.2 | 71.6 | (117.8) | 39.2 | 9.8 | 25.5 | 64.4 | 72.1 | 138.9 | (64.3)
Net Realized Gains on Sales of Investments | (0.1) | 10.0 | 11.7 | 16.5 | 2.8 | 1.7 | 21.3 | 16.1 | 38.1 | 41.9 | 26.4
Impairment Losses | 0.5 | (1.0) | (7.0) | (12.0) | (1.7) | (1.8) | (6.7) | (3.6) | (19.5) | (13.8) | (4.5)
Total Revenues | 1,392.1 | 1,353.7 | 1,230.9 | 1,229.0 | 1,283.7 | 1,243.8 | 1,275.4 | 1,236.3 | 5,205.7 | 5,039.2 | 3,725.1
Interest Expense |  |  |  |  |  |  |  |  | 36.0 | 42.5 | 43.3
Loss from Early Extinguishment of Debt |  |  |  |  |  | 5.8 |  |  | 0.0 | 5.8 | 0.0
Pension Settlement Expense |  |  |  |  |  |  |  |  | 64.1 | 0.0 | 0.0
Total Expenses | 1,271.5 | 1,201.6 | 1,071.2 | 1,151.3 | 1,126.8 | 1,082.3 | 1,126.9 | 1,041.6 | 4,695.6 | 4,377.6 | 3,526.0
Income Tax Benefit | (23.1) | (29.8) | (33.6) | (13.7) | (32.2) | (32.5) | (26.4) | (39.4) | (100.2) | (130.5) | (10.7)
Net Income | $ 97.5 | $ 122.3 | $ 126.1 | $ 64.0 | $ 124.7 | $ 129.0 | $ 122.1 | $ 155.3 | 409.9 | 531.1 | 190.1
Parent Company |  |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Investment Income |  |  |  |  |  |  |  |  | 1.4 | 2.1 | 2.5
Income (Loss) from Change in Fair Value of Equity and Convertible Securities |  |  |  |  |  |  |  |  | 4.3 | 1.6 | 1.4
Net Realized Gains on Sales of Investments |  |  |  |  |  |  |  |  | 0.1 | 0.3 | (0.7)
Total Revenues |  |  |  |  |  |  |  |  | 5.8 | 4.0 | 3.2
Interest Expense |  |  |  |  |  |  |  |  | 24.2 | 28.5 | 37.6
Loss from Early Extinguishment of Debt |  |  |  |  |  |  |  |  | 0.0 | 5.8 | 0.0
Defined Benefit Plan, Benefit Obligation, Payment for Settlement |  |  |  |  |  |  |  |  | (64.1) |  |
Pension Settlement Expense |  |  |  |  |  |  |  |  | 64.1 | 0.0 | 0.0
Other Operating (Benefits) Expenses |  |  |  |  |  |  |  |  | (3.6) | 4.0 | 26.3
Total Expenses |  |  |  |  |  |  |  |  | 84.7 | 38.3 | 63.9
Loss before Income Taxes and Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | (78.9) | (34.3) | (60.7)
Income Tax Benefit |  |  |  |  |  |  |  |  | 13.4 | 9.4 | 12.2
Loss before Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | (65.5) | (24.9) | (48.5)
Equity in Net Income of Subsidiaries |  |  |  |  |  |  |  |  | 475.4 | 556.0 | 238.6
Net Income |  |  |  |  |  |  |  |  | $ 409.9 | $ 531.1 | $ 190.1

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