v3.25.2
BUSINESS ACQUISITIONS AND DISPOSITIONS (Details)
€ in Millions, $ in Millions
6 Months Ended
Jul. 22, 2025
USD ($)
Jun. 30, 2025
USD ($)
Rate
Jun. 30, 2025
EUR (€)
Jun. 30, 2024
USD ($)
Business Combination [Line Items]        
Business Combination, Goodwill, Expected Tax Deductible, Amount   $ 41.1    
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill   46.4    
Business Combination, Recognized Asset Acquired, Asset   (87.5)    
Business Combination, Recognized Liability Assumed, Liability, Current   24.0    
Business Combination, Recognized Liability Assumed, Liability   (24.0)    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)   63.5    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill   63.5    
Payments to Acquire Businesses, Net of Cash Acquired   63.5   $ 293.1
Proceeds from sale of business   0.0   $ 13.5
Proceeds from Equity Method Investment, Distribution, Return of Capital   6.0    
Gain (Loss) on Disposition of Business   $ (4.9)    
SYNLAB        
Business Combination [Line Items]        
Subsidiary, Ownership Percentage, Noncontrolling Owner | Rate   15.00%    
Other acquirees        
Business Combination [Line Items]        
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment   $ 0.0    
Measurement Period Adjustments        
Business Combination [Line Items]        
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment   (0.8)    
Business Combination, Goodwill, Expected Tax Deductible, Amount   16.8    
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill   (16.0)    
Business Combination, Recognized Asset Acquired, Asset   0.0    
Business Combination, Recognized Liability Assumed, Liability, Current   0.0    
Business Combination, Recognized Liability Assumed, Liability   0.0    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)   0.0    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill   0.0    
Total business acquisitions and adjustments        
Business Combination [Line Items]        
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets   (0.8)    
Business Combination, Goodwill, Expected Tax Deductible, Amount   57.9    
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill   30.4    
Business Combination, Recognized Asset Acquired, Asset   (87.5)    
Business Combination, Recognized Liability Assumed, Liability, Current   24.0    
Business Combination, Recognized Liability Assumed, Liability   (24.0)    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)   63.5    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill   63.5    
SYNLAB | United States of America, Dollars        
Business Combination [Line Items]        
Payments to Acquire Equity Method Investments   151.6    
SYNLAB | Euro Member Countries, Euro        
Business Combination [Line Items]        
Payments to Acquire Equity Method Investments | €     € 140.4  
BioReference Health (Oncology Focused)        
Business Combination [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    
Community Health Systems, Inc. (Outreach Business) | Subsequent Event [Member]        
Business Combination [Line Items]        
Payments to Acquire Businesses, Net of Cash Acquired $ 195.0      
Customer Lists        
Business Combination [Line Items]        
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   15 years 15 years  
Noncompete Agreements [Member]        
Business Combination [Line Items]        
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life   5 years 5 years