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Income taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Tax Examination [Line Items]
Effective tax rate			(38.00%)	(5.00%)		(5.00%)
Discrete tax expense (benefit)	$ 0.4	$ 1.0	$ 0.4	$ 1.0
Forecast
Income Tax Examination [Line Items]
Effective tax rate					20.00%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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-Topic 740
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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.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
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-URI https://asc.fasb.org/1943274/2147482663/740-10-55-231

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