v3.26.3
Revenues Reserves for Discounts and Allowances (Details 1)
$ in Millions
 9 Months Ended
Sep. 30, 2026
USD ($)
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Beginning Balance $ 1,210.8
Apellis acquisition 52.0
Current Provisions Relating To Sales In Current Year 2,779.9
Adjustments Relating To Prior Years (69.0)
Payments/Returns Relating To Sales in Current Year (1,887.3)
Payments/Returns Relating To Sales in Prior Year (795.8)
Ending Balance 1,290.6
Discounts  
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Beginning Balance 115.7
Apellis acquisition 13.3
Current Provisions Relating To Sales In Current Year 665.8
Adjustments Relating To Prior Years (2.8)
Payments/Returns Relating To Sales in Current Year (528.6)
Payments/Returns Relating To Sales in Prior Year (132.7)
Ending Balance 130.7
Contractual adjustments  
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Beginning Balance 1,046.1
Apellis acquisition 32.3
Current Provisions Relating To Sales In Current Year 2,091.1
Adjustments Relating To Prior Years (82.5)
Payments/Returns Relating To Sales in Current Year (1,358.8)
Payments/Returns Relating To Sales in Prior Year (631.1)
Ending Balance 1,097.1
Returns  
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Beginning Balance 49.0
Apellis acquisition 6.4
Current Provisions Relating To Sales In Current Year 23.0
Adjustments Relating To Prior Years 16.3
Payments/Returns Relating To Sales in Current Year 0.1
Payments/Returns Relating To Sales in Prior Year (32.0)
Ending Balance $ 62.8