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 loss contingency liability.

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-Topic 450
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Amount of increase (decrease) in loss contingency liability.

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Commitments and contingencies - Narrative (Details) € in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2023 EUR (€)	Sep. 30, 2023 USD ($)	Jun. 21, 2023 EUR (€)	Jun. 21, 2023 USD ($)	Aug. 03, 2022 EUR (€)	Aug. 03, 2022 USD ($)	Jun. 30, 2022 EUR (€)	Jun. 30, 2022 USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss			€ 40	$ 44.0	€ 60	$ 65.0	€ 60	$ 65.0
Loss contingency accrual, period increase (decrease)	€ 40	$ 43.3
Iponweb
Loss Contingencies [Line Items]
Loss contingency accrual		$ 31.9