Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Revenues - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
Revenues - Narrative (Details) $ in Millions	Jun. 30, 2026 USD ($) wholesaler	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($) wholesaler
Disaggregation of Revenue [Line Items]
Number of wholesalers \| wholesaler	2			2
Total revenue	$ 2,736.0	$ 2,645.5	$ 5,213.8	$ 5,076.5
Alzheimer's collaboration revenue
Disaggregation of Revenue [Line Items]
Share of non-controling interest recognized	50.00%		50.00%
Total revenue	$ 63.7	54.9	$ 123.2	87.9
Alzheimer's Collaboration
Disaggregation of Revenue [Line Items]
Total revenue	$ 63.7	$ 54.9	$ 123.2	$ 87.9
Distributor One
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	29.90%	28.20%	28.70%	27.10%
Distributor Two
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	16.50%	15.80%	15.70%	15.00%
Distributor Three
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	10.90%		9.80%