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Impairment reviews - Additional Information (Details) € in Thousands | 12 Months Ended
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Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€)
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Impairment charge for the year | € 28,500 |
Impairment of Assets |  | € 35,949
Onerous contracts provision and other closure costs | 32,700 |
Current onerous contracts provision | € 1,200 |
Decrease in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount | (0.01) |
Increase in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount | 0.01 |
DGC |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Impairment of Assets | € 7,000 |
Cash flow projections, period for estimates (in years) | 8 years |
DGC | Decrease in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 2,300 |
DGC | Increase in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 5,700 |
Jumpman |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Cash flow projections, period for estimates (in years) | 5 years |
Jumpman | Decrease in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 3,100 |
Jumpman | Increase in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 4,100 |
Betway |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Cash flow projections, period for estimates (in years) | 8 years |
Betway | Decrease in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 45,700 |
Betway | Increase in Long-Term Growth Rate |  |
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items] |  |
Amount by which unit's recoverable amount exceeds its carrying amount | € 90,000 |

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