Net income / (loss) per ordinary share - Schedule of Reconciliation of Number of Shares Used in Computation of Basic and Diluted Net Income (Loss) Per Ordinary Share (Details) - shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Earnings Per Share [Abstract] | ||||
| Weighted average number of ordinary shares outstanding for basic net income / (loss) per ordinary share (in shares) | 76,932,640 | 77,373,534 | 76,785,939 | 79,057,239 |
| Effect of dilutive share options and other awards outstanding under share-based compensation programs (in shares) | 471,421 | 0 | 559,818 | 460,847 |
| Weighted average number of ordinary shares outstanding for diluted net income / (loss) per ordinary share (in shares) | 77,404,061 | 77,373,534 | 77,345,757 | 79,518,086 |