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v3.25.1

BUSINESS ACQUISITIONS AND DISPOSITIONS (Details) € in Millions, $ in Millions | 3 Months Ended
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Mar. 31, 2025 USD ($) Rate | Mar. 31, 2025 EUR (€) | Mar. 31, 2024 USD ($)
Business Acquisition [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | $ (77.5) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | (24.0) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 53.5 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | (41.1) |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 53.5 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | 24.0 |  |
Gain (Loss) on Disposition of Business | (4.9) |  |
Payments to Acquire Equity Method Investments | 157.0 |  | $ 13.7
Proceeds from sale of business | 0.0 |  | 13.5
Business Acquisition, Goodwill, Expected Tax Deductible Amount | 36.4 |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 53.5 |  | $ 259.2
SYNLAB |  |  |
Business Acquisition [Line Items] |  |  |
Subsidiary, Ownership Percentage, Noncontrolling Owner | Rate | 15.00% |  |
Measurement Period Adjustments |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | $ 0.0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | 0.0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 0.0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | (7.4) |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 0.0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | 0.0 |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount | (7.4) |  |
SYNLAB | United States of America, Dollars |  |  |
Business Acquisition [Line Items] |  |  |
Payments to Acquire Equity Method Investments | 151.6 |  |
SYNLAB | Euro Member Countries, Euro |  |  |
Business Acquisition [Line Items] |  |  |
Payments to Acquire Equity Method Investments | € |  | € 140.4 |
Total business acquisitions and adjustments |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets | (77.5) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities | (24.0) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 53.5 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | (48.5) |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 53.5 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities | 24.0 |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount | 29.0 |  |
BioReference Health (Oncology Focused) |  |  |
Business Acquisition [Line Items] |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | 225.0 |  |
Payment Due at Closing | 192.5 |  |
Business Combination, Contingent Consideration, Liability | $ 32.5 |  |
Noncompete Agreements [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 5 years | 5 years |
Customer Lists |  |  |
Business Acquisition [Line Items] |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 15 years | 15 years |

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