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Derivative financial instruments (Details) $ in Millions |  | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 07, 2021 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2024 EUR (€) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 EUR (€) | May 17, 2024 | Aug. 01, 2023 EUR (€)
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Fair value of option € '000s |  |  | € 581,780,000 |  | € 485,302,000 |  |  |
Mahigaming LLC |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Option consideration | $ | $ 2.5 | $ 10.0 |  |  |  |  |  |
Final consideration |  |  | 12,000,000 | $ 12.9 |  |  |  |
T and W Holdings Proprietary Limited |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Fair value of option € '000s |  |  | 300,000 |  |  |  |  |
Gain (loss) on designation of financial instrument as measured at fair value through profit or loss because credit derivative is used to manage credit risk |  |  | 300,000 |  |  |  |  |
T and W Holdings Proprietary Limited | Call Option Agreement One |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Percentage of voting equity interests acquired (in percent) |  |  |  |  |  |  | 51.00% |
T and W Holdings Proprietary Limited | Call Option Agreement Two |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Percentage of voting equity interests acquired (in percent) |  |  |  |  |  |  | 75.00% |
DGC |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Fair value of option € '000s |  |  | 56,500,000 |  | 42,600,000 |  |  |
Gain (loss) on designation of financial instrument as measured at fair value through profit or loss because credit derivative is used to manage credit risk |  |  | (13,100,000) |  | (28,600,000) | € (15,100,000) |  |
DGC | Mahigaming LLC |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Option consideration |  |  | 10,000,000 |  |  |  |  |
SportCC ApS |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Fair value of option € '000s |  |  | 2,200,000 |  | € 2,100,000 |  |  | € 2,100,000
Gain (loss) on designation of financial instrument as measured at fair value through profit or loss because credit derivative is used to manage credit risk |  |  | (100,000) |  |  |  |  |
Option consideration |  |  | € 1,900,000 |  |  |  |  |
Percentage of remaining voting equity interests acquired |  |  |  |  |  |  |  | 0.25
Verno Holdings Limited |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |
Equity interests of acquirer |  |  |  |  |  | € 21,400,000 |  |

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