Earnings per share - Computation (Details) - EUR (€) € / shares in Units, € in Millions, shares in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Basic earnings per share
Profit for the period attributable to equity owners of the parent (€m)	€ 57.1	€ 70.9	€ 89.8	€ 105.4
Weighted average Ordinary Shares and shares issuable solely after the passage of time in millions	152.4	163.0	153.5	163.1
Basic earnings per share	€ 0.37	€ 0.43	€ 0.59	€ 0.65
Diluted earnings per share
Profit for the period attributable to equity owners of the parent (€m)	€ 57.1	€ 70.9	€ 89.8	€ 105.4
Weighted average Ordinary Shares, shares issuable solely after the passage of time and potential ordinary shares in millions	152.6	163.1	153.7	163.2
Diluted earnings per share	€ 0.37	€ 0.43	€ 0.58	€ 0.65

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name IAS
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The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
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Weighted Average Number Of Ordinary and Preferred Shares Outstanding, Basic

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Weighted Average Number Of Ordinary and Preferred Shares Outstanding, Diluted

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