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Stock Compensation - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Jan. 31, 2024
Stock compensation |  |  |
Stock compensation expense | $ 59.8 | $ 53.4 |
Dividend yield (as a percent) | 0.00% |  |
Assumed annualized forfeiture rate (as a percent) | 5.00% |  |
2024 Inducement Plan |  |  |
Stock compensation |  |  |
Shares reserved for future issuance (in shares) |  |  | 1,000,000
Share-based Payment Arrangement, Option |  |  |
Stock compensation |  |  |
Stock option grant term | 10 years |  |
Vesting period | 4 years |  |
Percentage of units vesting at the end of each calendar year (as a percent) | 25.00% |  |
Unrecognized compensation cost for nonvested option (in dollars) | $ 30.6 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards | 1 year 1 month 6 days |  |
Share-based Payment Arrangement, Option | Share-based Payment Arrangement, Tranche One |  |  |
Stock compensation |  |  |
Vesting period | 1 year |  |
Share-based Payment Arrangement, Option | Share-based Payment Arrangement, Tranche Two |  |  |
Stock compensation |  |  |
Vesting period | 36 months |  |
Restricted Stock Units (RSUs) |  |  |
Stock compensation |  |  |
Vesting period | 4 years |  |
Percentage of units vesting at the end of each calendar year (as a percent) | 25.00% |  |
Number of shares awarded for each RSU (in shares) | 1 |  |
Unrecognized compensation cost for nonvested option (in dollars) | $ 204.3 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards | 1 year 7 months 6 days |  |
Performance Shares |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 3.4 | 6.5 |
Unrecognized compensation cost for nonvested option (in dollars) | $ 13.3 |  |
Vesting period of recognition of the unrecognized compensation cost of nonvested awards | 1 year 2 months 12 days |  |
Performance Shares | Minimum |  |  |
Stock compensation |  |  |
Vesting period | 3 years |  |
Performance Shares | Maximum |  |  |
Stock compensation |  |  |
Vesting period | 4 years |  |
Research and Development Expense |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 36.8 | 31.0 |
Selling, General and Administrative Expenses |  |  |
Stock compensation |  |  |
Stock compensation expense | 22.4 | 21.6 |
Cost of Sales |  |  |
Stock compensation |  |  |
Stock compensation expense | $ 0.6 | $ 0.8 |

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