Share-based payments (Details) - USD ($) $ / shares in Units, $ in Millions |
6 Months Ended | |
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Jun. 30, 2026 |
Jun. 30, 2025 |
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| Time-based shares | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Award vesting period | 3 years | |
| Performance-based shares | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Award vesting period | 3 years | |
| Restricted stock and restricted stock units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Aggregate fair value at grant date | $ 19.0 | $ 15.3 |
| Granted (in shares) | 316,000 | 215,000 |
| Average grant price (in usd per share) | $ 60.08 | $ 71.36 |
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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