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INVESTMENTS - Variable Interest Entities (Details) - Variable interest entity, not primary beneficiary - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
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Variable Interest Entity [Line Items] |  |
Investment carrying values | $ 949.8 | $ 955.9
Unfunded capital commitments | 203.0 | 202.5
Accounts receivable | 105.6 | 96.2
Maximum risk of loss related to nonconsolidated variable interest entities | $ 1,258.4 | $ 1,254.6

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