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FAIR VALUE MEASUREMENTS - FAIR VALUE ACTIVITY (Details) - Significant unobservable inputs (Level 3) - Fair Value, Measurements, Recurring - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Corporate securities |  |  |  |
Assets: |  |  |  |
Purchases | $ 11.3 | $ 1.7 | $ 14.2 | $ 2.7
Sales | (5.1) | 0.0 | (3.6) | (1.4)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 6.2 | 1.7 | 10.6 | 1.3
Asset-backed securities |  |  |  |
Assets: |  |  |  |
Purchases | 0.0 | 0.3 | 0.0 | 2.5
Sales | (0.2) | (0.2) | (0.3) | (7.5)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | (0.2) | 0.1 | (0.3) | (5.0)
Total Fixed Maturities, Available For Sale |  |  |  |
Assets: |  |  |  |
Purchases | 11.3 | 2.0 | 14.2 | 5.2
Sales | (5.3) | (0.2) | (3.9) | (8.9)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 6.0 | 1.8 | 10.3 | (3.7)
Equity securities - corporate securities |  |  |  |
Assets: |  |  |  |
Purchases |  | 0.0 |  | 0.0
Sales |  | (2.1) |  | (2.1)
Issuances |  | 0.0 |  | 0.0
Settlements |  | 0.0 |  | 0.0
Purchases, sales, issuances and settlements, net | 0.0 | (2.1) | 0.0 | (2.1)
Trading securities - commercial mortgage-backed securities |  |  |  |
Assets: |  |  |  |
Purchases, sales, issuances and settlements, net | 0.0 |  | 0.0 |
Other invested assets - residual tranches |  |  |  |
Assets: |  |  |  |
Purchases | 8.6 | 0.1 | 19.4 | 1.8
Sales | (3.0) | 0.0 | (4.4) | (0.3)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | $ 5.6 | 0.1 | $ 15.0 | 1.5
Non-agency residential mortgage-backed securities |  |  |  |
Assets: |  |  |  |
Purchases, sales, issuances and settlements, net |  | 0.0 |  | 0.0
Collateralized loan obligations |  |  |  |
Assets: |  |  |  |
Purchases, sales, issuances and settlements, net |  |  |  | 0.0
Trading securities - non-agency residential mortgage-backed securities |  |  |  |
Assets: |  |  |  |
Purchases, sales, issuances and settlements, net |  | $ 0.0 |  | $ 0.0

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