v3.26.3
BUSINESS ACQUISITIONS (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 23, 2026
Oct. 20, 2026
Oct. 15, 2026
Jun. 28, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Business Combination [Abstract]                
Business Combination, Consideration Transferred             $ 789.1  
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         $ 388.4   388.4  
Payments to Acquire Businesses, Net of Cash Acquired             683.4 $ 324.0
Business Combination, Pro Forma Information [Line Items]                
Business Combination, Pro Forma Information, Pro Forma Revenue         3,819.1 $ 3,638.0 11,139.0 10,666.6
Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax         264.8 $ 270.9 854.4 $ 748.3
Customer Relationships [Member]                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         335.3   $ 335.3  
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             15 years  
Noncompete Agreements [Member]                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         48.9   $ 48.9  
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             5 years  
Other Intangible Assets                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         4.2   $ 4.2  
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             5 years  
Empire City Laboratories, Inc.                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         0.0   $ 0.0  
Goodwill         117.5   117.5  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         132.5   132.5  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Asset         250.0   250.0  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         0.0   0.0  
Business Combination, Recognized Liability Assumed, Lease Obligation         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         250.0   250.0  
Business Combination, Consideration Transferred, Liabilities Incurred             (85.0)  
Escrow Deposit         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         165.0   165.0  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Inventory, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         0.0   0.0  
Parkview Health Systems, Inc. [Member]                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         0.0   0.0  
Goodwill         77.5   77.5  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         87.5   87.5  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Asset         165.0   165.0  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         0.0   0.0  
Business Combination, Recognized Liability Assumed, Lease Obligation         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         165.0   165.0  
Business Combination, Consideration Transferred, Liabilities Incurred             0.0  
Escrow Deposit         (5.0)   (5.0)  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         160.0   160.0  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Inventory, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         0.0   0.0  
Other acquirees                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         2.8   2.8  
Goodwill         68.1   68.1  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         68.2   68.2  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Asset         143.1   143.1  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         2.5   2.5  
Business Combination, Recognized Liability Assumed, Liability, Current         1.7   1.7  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.9   0.9  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         7.5   7.5  
Business Combination, Recognized Liability Assumed, Lease Obligation         2.4   2.4  
Business Combination, Recognized Liability Assumed, Liability         15.0   15.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         128.1   128.1  
Business Combination, Consideration Transferred, Liabilities Incurred             (4.8)  
Escrow Deposit         (20.0)   (20.0)  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         103.3   103.3  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         0.4   0.4  
Business Combination, Recognized Asset Acquired, Receivable, Current         3.6   3.6  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Inventory, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         0.0   0.0  
Measurement Period Adjustments                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         0.0   0.0  
Goodwill         (1.0)   (1.0)  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         (13.1)   (13.1)  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Asset         (14.1)   (14.1)  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         0.0   0.0  
Business Combination, Recognized Liability Assumed, Lease Obligation         0.0   0.0  
Business Combination, Recognized Liability Assumed, Liability         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         (14.1)   (14.1)  
Business Combination, Consideration Transferred, Liabilities Incurred             14.1  
Escrow Deposit         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         0.0   0.0  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Receivable, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Inventory, Current         0.0   0.0  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         0.0   0.0  
Total business acquisitions and adjustments                
Business Combination [Line Items]                
Business Combination, Goodwill, Expected Tax Deductible, Amount         223.2   223.2  
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         8.5   8.5  
Goodwill         439.0   439.0  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         375.3   375.3  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.7   0.7  
Business Combination, Recognized Asset Acquired, Asset         855.1   855.1  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         5.1   5.1  
Business Combination, Recognized Liability Assumed, Liability, Current         8.0   8.0  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         4.9   4.9  
Business Combination, Recognized Liability Assumed, Liability, Current         0.9   0.9  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         31.3   31.3  
Business Combination, Recognized Liability Assumed, Lease Obligation         5.9   5.9  
Business Combination, Recognized Liability Assumed, Liability         56.1   56.1  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         799.0   799.0  
Business Combination, Consideration Transferred, Liabilities Incurred             (80.7)  
Escrow Deposit         (25.0)   (25.0)  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         693.3   693.3  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         9.9   9.9  
Business Combination, Recognized Asset Acquired, Receivable, Current         15.9   15.9  
Business Combination, Recognized Asset Acquired, Receivable, Current         2.9   2.9  
Business Combination, Recognized Asset Acquired, Inventory, Current         2.1   2.1  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         0.8   0.8  
Outreach laboratory services business                
Business Combination [Line Items]                
Payments to Acquire Businesses, Gross       $ 155.0        
MLM Medical Labs                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment         5.7   5.7  
Goodwill         176.9   176.9  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill         100.2   100.2  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent         0.7   0.7  
Business Combination, Recognized Asset Acquired, Asset         311.1   311.1  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current         2.6   2.6  
Business Combination, Recognized Liability Assumed, Liability, Current         6.3   6.3  
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current         4.9   4.9  
Business Combination, Recognized Liability Assumed, Liability, Current         0.0   0.0  
Business Combination, Recognized Liability Assumed, Deferred Tax Liability         23.8   23.8  
Business Combination, Recognized Liability Assumed, Lease Obligation         3.5   3.5  
Business Combination, Recognized Liability Assumed, Liability         41.1   41.1  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)         270.0   270.0  
Business Combination, Consideration Transferred, Liabilities Incurred             (5.0)  
Escrow Deposit         0.0   0.0  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill         265.0   265.0  
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent         9.5   9.5  
Business Combination, Recognized Asset Acquired, Receivable, Current         12.3   12.3  
Business Combination, Recognized Asset Acquired, Receivable, Current         2.9   2.9  
Business Combination, Recognized Asset Acquired, Inventory, Current         2.1   2.1  
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current         $ 0.8   $ 0.8  
Prenatal Health testing business from Myriad Genetics, Inc. | Subsequent Event [Member]                
Business Combination [Line Items]                
Payments to Acquire Businesses, Gross   $ 210.0            
BioReference Health, LLC | Subsequent Event [Member]                
Business Combination [Line Items]                
Payments to Acquire Businesses, Gross     $ 872.0          
Payments Due at Closing     722.0          
Contingent consideration     $ 150.0          
Millennium Health | Subsequent Event [Member]                
Business Combination [Line Items]                
Payments to Acquire Businesses, Gross $ 375.0              
Payments Due at Closing 245.0              
Contingent consideration $ 130.0