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		9 Months Ended
Revenues - Narrative (Details) $ in Millions	Sep. 30, 2026 USD ($) wholesaler	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($) wholesaler
Disaggregation of Revenue [Line Items]
Number of wholesalers \| wholesaler	2			2
Total revenue	$ 2,804.1	$ 2,534.7	$ 8,017.9	$ 7,611.2
Alzheimer's collaboration revenue
Disaggregation of Revenue [Line Items]
Share of non-controling interest recognized	50.00%		50.00%
Total revenue	$ 68.4	42.7	$ 191.6	130.6
Alzheimer's Collaboration
Disaggregation of Revenue [Line Items]
Total revenue	$ 68.4	$ 42.7	$ 191.6	$ 130.6
Distributor One
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	30.30%	27.80%	29.20%	27.30%
Distributor Two
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	16.90%	16.00%	16.10%	15.40%
Distributor Three
Disaggregation of Revenue [Line Items]
Percentage of revenues from major distributors	11.50%		10.40%