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Income taxes - Effective Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Effective income tax rate	1.00%	(1.50%)
Enacted tax rate	25.80%
U.S
Deferred tax (expense) / benefit	$ (0.7)
United States and France
Deferred tax (expense) / benefit		$ 1.2

X

- Definition

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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