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Income tax (Details 3) - ARS ($) $ in Millions | Jun. 30, 2019 | Jun. 30, 2018
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Income Tax [Abstract] |  |
Deferred income tax asset to be recovered after more than 12 months | $ 8,403 | $ 9,236
Deferred income tax asset to be recovered within 12 months | 1,449 | 1,700
Deferred income tax assets | 9,852 | 10,936
Deferred income tax liability to be recovered after more than 12 months | (32,993) | (50,960)
Deferred income tax liability to be recovered within 12 months | (13,255) | (714)
Deferred income tax liability | (46,248) | (51,674)
Deferred income tax assets (liabilities), net | $ (36,396) | $ (40,738)

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- Definition refers to the amount of deferred income tax asset to be recovered after more than12 months. + References No definition available. + Details
Name: | irsa_DeferredIncomeTaxAssetToBeRecoveredAfterMoreThan12Months
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition refers to the amount of deferred income tax asset to be recovered within twe months. + References No definition available. + Details
Name: | irsa_DeferredIncomeTaxAssetToBeRecoveredWithinTweMonths
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Refers to the amount of deferred income tax liability to be recovered after more than 12 months. + References No definition available. + Details
Name: | irsa_DeferredIncomeTaxLiabilityToBeRecoveredAfterMoreThan12Months
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Refers to the amount of deferred income tax liability to be recovered within twe months. + References No definition available. + Details
Name: | irsa_DeferredIncomeTaxLiabilityToBeRecoveredWithinTweMonths
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Refers to the amount of deferred tax assets. + References No definition available. + Details
Name: | irsa_DeferredTaxAssets1
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Refers to the amount of deferred tax liabilities. + References No definition available. + Details
Name: | irsa_DeferredTaxLiabilities1
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of deferred tax liabilities or asset. [Refer: Deferred tax liabilities; Deferred tax assets] + References No definition available. + Details
Name: | irsa_DeferredTaxLiabilityAssets
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | irsa_IncomeTaxAbstract
Namespace Prefix: | irsa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration