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FAIR VALUE MEASUREMENTS - Schedule of Change in Contingent Consideration Liability (Details) - Level 3 - Fair value, measurements, recurring - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning Balance $ 95.8 $ 306.3
Measurement period adjustment 0.0 (49.3)
Unrealized gains, included in earnings (49.6) (45.5)
Ending Balance $ 46.2 $ 211.5