Stock-based compensation and stockholders' equity - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Total stock-based compensation expense | $ 6.9 | $ 4.6 | $ 8.8 | $ 6.1 |
| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Total stock-based compensation expense | 0.9 | 0.3 | 1.4 | 0.6 |
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Total stock-based compensation expense | 0.4 | 0.2 | 0.6 | 0.4 |
| Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Total stock-based compensation expense | $ 5.6 | $ 4.1 | $ 6.8 | $ 5.1 |