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CONSOLIDATED STATEMENT OF CASH FLOWS - SCHEDULE OF THE RECONCILIATION FOR NET INCOME PROVIDED BY OPERATING ACTIVITIES (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |
Net income | $ 166.1 | $ 9.3 | $ 116.3 | $ 112.3 | $ 36.3 | $ 167.3 | $ 73.7 | $ (0.8) | $ 404.0 | $ 276.5 | $ 630.6
Adjustments to reconcile net income to net cash from operating activities: |  |  |  |  |  |  |  |  |  |  |
Amortization and depreciation |  |  |  |  |  |  |  |  | 292.4 | 267.4 | 248.5
Income taxes |  |  |  |  |  |  |  |  | 59.1 | 21.1 | 152.0
Insurance liabilities |  |  |  |  |  |  |  |  | 556.3 | 449.7 | (374.7)
Accrual and amortization of investment income |  |  |  |  |  |  |  |  | (334.0) | (170.7) | 138.7
Deferral of policy acquisition costs |  |  |  |  |  |  |  |  | (445.7) | (377.9) | (336.0)
Net investment losses |  |  |  |  |  |  |  |  | 49.9 | 69.0 | 135.4
Other |  |  |  |  |  |  |  |  | 45.7 | 47.8 | (99.1)
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 627.7 | 582.9 | 495.4
Stock options, restricted stock and performance units |  |  |  |  |  |  |  |  | $ 23.2 | $ 23.3 | $ 25.2

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