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Stock Compensation - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Stock compensation |  |  |
Stock compensation expense | $ 266.1 | $ 215.9 | $ 188.4
Dividend yield (as percent) | 0.00% |  |
Escient |  |  |
Stock compensation |  |  |
Asset acquisition, compensation expense | $ 31.5 |  |
Options |  |  |
Stock compensation |  |  |
Assumed annualized forfeiture rate | 5.00% |  |
Unrecognized compensation cost for nonvested option | $ 19.2 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards (in years) | 1 year 1 month 6 days |  |
Restricted Stock Units (RSUs) |  |  |
Stock compensation |  |  |
Assumed annualized forfeiture rate | 5.00% |  |
Unrecognized compensation cost for nonvested option | $ 235.9 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards (in years) | 1 year 7 months 6 days |  |
Performance Shares |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 30.1 | 17.2 | 7.8
Assumed annualized forfeiture rate | 5.00% |  |
Unrecognized compensation cost for nonvested option | $ 27.3 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards (in years) | 1 year 7 months 6 days |  |
Research and Development Expense |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 161.3 | 126.7 | 112.5
Selling, General and Administrative Expenses |  |  |
Stock compensation |  |  |
Stock compensation expense | 102.5 | 86.1 | 73.2
Cost of Sales |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 2.3 | $ 3.1 | $ 2.7

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