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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Corporate securities |  |  |  |
Assets: |  |  |  |
Purchases | $ 6.3 | $ 9.3 | $ 10.5 | $ 24.2
Sales | 0.0 | (6.6) | (1.4) | (11.2)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 6.3 | 2.7 | 9.1 | 13.0
Corporate securities | Variable Interest Entities |  |  |  |
Assets: |  |  |  |
Purchases |  |  |  | 0.0
Sales |  |  |  | (2.1)
Issuances |  |  |  | 0.0
Settlements |  |  |  | 0.0
Purchases, sales, issuances and settlements, net |  |  |  | (2.1)
Asset-backed securities |  |  |  |
Assets: |  |  |  |
Purchases | 1.3 | 19.0 | 3.8 | 26.9
Sales | (0.2) | (0.7) | (7.7) | (0.9)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 1.1 | 18.3 | (3.9) | 26.0
Non-agency residential mortgage-backed securities |  |  |  |
Assets: |  |  |  |
Purchases |  | 0.0 | 0.0 | 6.5
Sales |  | (0.1) | (0.1) | (0.5)
Issuances |  | 0.0 | 0.0 | 0.0
Settlements |  | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 0.0 | (0.1) | (0.1) | 6.0
Commercial mortgage-backed securities |  |  |  |
Assets: |  |  |  |
Purchases |  |  |  | 28.0
Sales |  |  |  | 0.0
Issuances |  |  |  | 0.0
Settlements |  |  |  | 0.0
Purchases, sales, issuances and settlements, net | 0.0 | 0.0 | 0.0 | 28.0
Total fixed maturities, available for sale |  |  |  |
Assets: |  |  |  |
Purchases | 7.6 | 28.3 | 14.3 | 85.6
Sales | (0.2) | (7.4) | (9.2) | (12.6)
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 7.4 | 20.9 | 5.1 | 73.0
Equity securities - corporate securities |  |  |  |
Assets: |  |  |  |
Purchases |  |  | 0.0 | 67.0
Sales |  |  | (2.1) | (3.1)
Issuances |  |  | 0.0 | 0.0
Settlements |  |  | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | 0.0 | 0.0 | (2.1) | 63.9
Other invested assets - residual tranches |  |  |  |
Assets: |  |  |  |
Purchases | 3.9 | 1.6 | 6.4 | 2.8
Sales | 0.0 | 0.0 | (0.3) | 0.0
Issuances | 0.0 | 0.0 | 0.0 | 0.0
Settlements | 0.0 | 0.0 | 0.0 | 0.0
Purchases, sales, issuances and settlements, net | $ 3.9 | $ 1.6 | $ 6.1 | $ 2.8

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