v3.25.2

Impairment reviews - Additional Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
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]
Onerous contracts provision	$ (22.6)
Cash flow projections, period for estimates (in years)	3 months
Pre tax discount rate	26.90%
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	$ 0.2
DGC \| Specific equity risk premium
Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount [Line Items]
Specific equity risk premium percent	0.11

The amount by which a cash-generating unit's (group of units') recoverable amount exceeds its carrying amount. [Refer: Carrying amount [member]; Total for all cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2024-01-01
-Paragraph 134
-Subparagraph f
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_134_f_i&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2024-01-01
-Paragraph 135
-Subparagraph e
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_135_e_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount by which value that has been assigned to a key assumption must change in order for a unit's recoverable amount to be equal to its carrying amount. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2024-01-01
-Paragraph 134
-Subparagraph f
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_134_f_iii&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2024-01-01
-Paragraph 135
-Subparagraph e
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_135_e_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of provision for onerous contracts. An onerous contract is a contract in which the unavoidable costs of meeting the obligation under the contract exceed the economic benefits expected to be received under it. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2024-01-01
-Paragraph 66
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2024-en-r&anchor=para_66&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_OnerousContractsProvision
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Cash Flow Projections, Period For Estimates

+ References

No definition available.

+ Details

Name:	sghc_CashFlowProjectionsPeriodForEstimates
Namespace Prefix:	sghc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Disclosure Of Key Assumptions Used In The Estimation Of The Recoverable Amount

+ References

No definition available.

+ Details

Name:	sghc_DisclosureOfKeyAssumptionsUsedInTheEstimationOfTheRecoverableAmountLineItems
Namespace Prefix:	sghc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

PreTaxDiscountRate.

+ References

No definition available.

+ Details

Name:	sghc_PreTaxDiscountRate
Namespace Prefix:	sghc_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Regulatory Risks Percent

+ References

No definition available.

+ Details

Name:	sghc_RegulatoryRisksPercent
Namespace Prefix:	sghc_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	sghc_KeyassumptionAxis=sghc_IncreaseInLongTermGrowthRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=sghc_DGCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sghc_KeyassumptionAxis=sghc_DecreaseInLongTermGrowthRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_EquityPriceRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Super Group (SGHC) Ltd 6-K