Share-Based Compensation - Stock Options Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Awards granted | ||||
| Share-based compensation expense before taxes | $ 43.4 | $ 37.8 | $ 77.3 | $ 69.6 |
| Unrecognized compensation cost | 84.2 | $ 84.2 | ||
| Stock Options with Performance Conditions | ||||
| Awards granted | ||||
| Granted (in shares) | 300,000 | 300,000 | ||
| Total grant date fair value | $ 53.9 | $ 38.0 | ||
| Share-based compensation expense before taxes | 11.8 | 10.3 | $ 22.3 | 18.0 |
| Stock options | ||||
| Awards granted | ||||
| Granted (in shares) | 289,956 | |||
| Total grant date fair value | $ 55.2 | 39.0 | ||
| Share-based compensation expense before taxes | $ 12.8 | $ 11.1 | $ 24.3 | $ 19.6 |
| Weighted average grant date fair value of stock options (in dollars per share) | $ 190.42 | $ 110.11 | ||
| Total grant date fair value of employee stock options that vested | $ 36.7 | $ 1.4 | ||
| Weighted average remaining vesting period (in years) | 2 years 2 months 12 days | |||
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 Net 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 The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Represents the total grant date fair value of option granted during the reporting period. No definition available.
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