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Schedule II - Condensed Statements of Income Parent Company (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Revenues: |  |  |
Net investment (losses) gains | $ (335.1) | $ (80.9) | $ (85.4)
Total revenues | 6,128.1 | 6,003.5 | 7,605.2
Expenses: |  |  |
Income taxes | 32.8 | 58.9 | 60.4
Net income | 132.6 | 215.5 | 265.3
Less: Net income (loss) attributable to noncontrolling interests | 1.5 | (1.3) | 2.3
Net income attributable to the Company | 131.1 | 216.8 | 263.0
Parent Company |  |  |
Revenues: |  |  |
Dividends from subsidiaries | 172.5 | 411.3 | 732.7
Other income (loss) | 20.2 | 22.5 | (22.2)
Net investment (losses) gains | (37.9) | 12.5 | (192.4)
Total revenues | 154.8 | 446.3 | 518.1
Expenses: |  |  |
Other expenses | 88.6 | 97.8 | 55.1
Income before income taxes and equity in undistributed earnings of subsidiaries | 66.2 | 348.5 | 463.0
Income taxes | 13.2 | 74.8 | 86.0
Equity in undistributed earnings (losses) of subsidiaries | 79.6 | (58.2) | (111.7)
Net income | 132.6 | 215.5 | 265.3
Less: Net income (loss) attributable to noncontrolling interests | 1.5 | (1.3) | 2.3
Net income attributable to the Company | $ 131.1 | $ 216.8 | $ 263.0

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