Income taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Income Tax Disclosure [Abstract] | ||||
| Income tax expense | $ 16.7 | $ 20.2 | $ 51.7 | $ 45.1 |
| Pre-tax income | $ 103.7 | $ 110.9 | $ 309.5 | $ 261.1 |
| Effective tax rate | 16.10% | 16.70% | ||
| Top-up tax | $ 0.8 | |||
| Unrecognized tax benefits | $ 0.2 | 0.2 | ||
| Unrecognized tax benefits that would impact the effective tax rate | $ 0.1 | $ 0.1 | ||
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of reported income tax expense from difference to expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to net controlled foreign corporation (CFC) tested income (NCTI) (formerly referred to as global intangible low-taxed income (GILTI)). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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