XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.25.3

Critical accounting estimates and judgments - Sensitivity analysis (Details) - I-Systems $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2025 USD ($)
Goodwill and other intangible assets |
Percentage of reasonably possible increase in discount rate | 1.00%
Percentage of reasonably possible decrease in terminal growth rate | 1.00%
Percentage of reasonably possible decrease in homes connected growth | 15.00%
Discount rate |
Goodwill and other intangible assets |
Impairment loss from reasonably possible increase or decrease in key assumption | $ 49.7
Terminal growth rate |
Goodwill and other intangible assets |
Impairment loss from reasonably possible increase or decrease in key assumption | 27.3
Percentage of homes connected growth |
Goodwill and other intangible assets |
Impairment loss from reasonably possible increase or decrease in key assumption | $ 63.4

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in impairment loss from increase (decrease) in designated risk component. + References No definition available. + Details
Name: | ihs_IncreaseInImpairmentLossIncreaseDecreaseInDesignatedRiskComponent
Namespace Prefix: | ihs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of reasonably possible decrease in homes connected growth. + References No definition available. + Details
Name: | ihs_PercentageOfReasonablyPossibleDecreaseInHomesConnectedGrowth
Namespace Prefix: | ihs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of reasonably possible decrease in terminal growth rate + References No definition available. + Details
Name: | ihs_PercentageOfReasonablyPossibleDecreaseInTerminalGrowthRate
Namespace Prefix: | ihs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of reasonably possible increase in discount rate + References No definition available. + Details
Name: | ihs_PercentageOfReasonablyPossibleIncreaseInDiscountRate
Namespace Prefix: | ihs_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ihs_ISystemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ifrs-full_DiscountRateMeasurementInputMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ihs_TerminalGrowthRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnobservableInputsAxis=ihs_PercentageOfHomesConnectedGrowthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |