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v3.24.2

Fair Value Measurements - Transfers (Details) - Available-for-sale - Recurring Fair Value Measurements - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Fixed maturities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | $ 90.5 | $ 79.1 | $ 210.0 | $ 307.8
Transfers out of Level 3 into Level 2 |  | 120.9 | 111.6 | 179.0
States and political subdivisions |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | 15.5 |  | 15.5 |
Corporate debt securities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | 19.4 | 79.1 | 58.9 | 89.5
Transfers out of Level 3 into Level 2 |  |  |  | 42.9
Collateralized debt obligations |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 3 into Level 2 |  | $ 120.9 |  | 136.1
Other debt obligations |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | $ 55.6 |  | 135.6 | $ 218.3
Transfers out of Level 3 into Level 2 |  |  | $ 111.6 |

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