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v3.23.2

Fair Value Measurements - Transfers (Details) - Recurring Fair Value Measurements - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 3 into Level 2, net derivative assets (liabilities) |  | $ 0.3 |  | $ 0.3
Available-for-sale | Fixed maturities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | $ 79.1 | 13.1 | $ 307.8 | 188.3
Transfers out of Level 3 into Level 2 | 120.9 | 65.5 | 179.0 | 169.5
Available-for-sale | States and political subdivisions |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 |  | 12.0 |  | 12.0
Available-for-sale | Corporate debt securities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 | 79.1 | 1.1 | 89.5 | 176.3
Transfers out of Level 3 into Level 2 |  |  | 42.9 |
Available-for-sale | Commercial mortgage-backed securities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 3 into Level 2 |  | 10.2 |  | 10.2
Available-for-sale | Collateralized debt obligations |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 3 into Level 2 | $ 120.9 | $ 55.3 | 136.1 | 139.3
Available-for-sale | Other debt obligations |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 |  |  | $ 218.3 |
Transfers out of Level 3 into Level 2 |  |  |  | 20.0
Trading | Fixed maturities |  |  |  |
Fair Value Hierarchy Levels Transfers |  |  |  |
Transfers out of Level 2 into Level 3 |  |  |  | $ 29.0

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