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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 subsidiary | Mar. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023 USD ($)
Concentration Risk [Line Items] |  |  |  |
Litigation settlement, amount awarded to other party | $ |  |  |  | $ 48
Independent subsidiaries with multi-claim reviews scheduled or in process | subsidiary | 18 |  |  |
Accounts Receivable | Customer Concentration Risk | Total Medicaid and Medicare |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration percentage | 51.20% |  | 52.90% |
Revenue | Customer Concentration Risk | Service revenue |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration percentage | 100.00% | 100.00% |  |
Revenue | Customer Concentration Risk | Total Medicaid and Medicare | Service revenue |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration percentage | 69.50% | 71.60% |  |

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