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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2025 | Sep. 30, 2025 | Dec. 31, 2024
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 515.9 | $ 591.2
Accumulated Amortization |  | (352.8) | (328.8)
Net |  | 163.1 | 262.4
Pharmacogenomics and Gateway Intangible Asset Groups |  |  |
Intangible Assets [Line Items] |  |  |
Impairment expense | $ 82.0 |  |
Developed technologies |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 480.2 | 560.1
Accumulated Amortization |  | (347.7) | (326.5)
Net |  | 132.5 | 233.6
Internal-use software |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 21.9 | 1.8
Accumulated Amortization |  | (3.1) | (0.7)
Net |  | 18.8 | 1.1
Customer relationships |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  |  | 1.6
Accumulated Amortization |  |  | (0.3)
Net |  |  | 1.3
Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 2.1 | 6.1
Accumulated Amortization |  | (1.6) | (1.3)
Net |  | 0.5 | 4.8
Licensed technologies |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 5.3 |
Accumulated Amortization |  | (0.4) |
Net |  | 4.9 |
Internal-use software (in-process) |  |  |
Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 6.4 | 21.6
Accumulated Amortization |  | 0.0 | 0.0
Net |  | $ 6.4 | $ 21.6

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