Share-based compensation - Schedule of Stock Option Activity (Details) |
6 Months Ended |
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Jun. 30, 2026
USD ($)
$ / shares
shares
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| Number of shares | |
| Outstanding, beginning balance (in shares) | shares | 83,316 |
| Granted (in shares) | shares | 61,416 |
| Outstanding, ending balance (in shares) | shares | 144,732 |
| Number of shares, Exercisable (in shares) | shares | 19,793 |
| Weighted average exercise price per share | |
| Outstanding, beginning balance (in usd per share) | $ / shares | $ 211.52 |
| Granted (in usd per share) | $ / shares | 231.63 |
| Outstanding, ending balance (in usd per share) | $ / shares | 220.06 |
| Weighted average exercise price per share, Exercisable (in usd per share) | $ / shares | $ 201.38 |
| Aggregate intrinsic value, Outstanding | $ | $ 3,000,000 |
| Aggregate intrinsic value, Exercisable | $ | $ 1,000,000 |
| Weighted average remaining contractual life, Outstanding | 9 years 1 month 6 days |
| Weighted average remaining contractual life, Exercisable | 8 years 3 months 18 days |
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average contractual term remaining for vested portion of option outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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