No definition available.

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- Definition

The amount recognised as of the acquisition date for borrowings assumed in a business combination. [Refer: Borrowings; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; Business combinations [member]]

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The fair value of receivables acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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- Definition

The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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- Definition

The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Balance Type:	debit
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- Definition

The amount recognised as of the acquisition date for inventory acquired in a business combination. [Refer: Inventories; Business combinations [member]]

+ References

+ Details

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Balance Type:	debit
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- Definition

The amount recognised as of the acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; Business combinations [member]]

+ References

+ Details

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- Definition

The amount recognised as of the acquisition date for trade and other payables assumed in a business combination. [Refer: Trade and other payables; Business combinations [member]]

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Information about employee benefits recognised as of acquisition date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of identifiable assets acquired

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for liabilities of uncertain timing or amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	irsa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Acquisitions and disposals (Details) - ARS ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Jun. 30, 2016
Fair value of identifiable assets and assumed liabilities:
Properties, plant and equipment	$ (28,801)		$ 1,712	$ 15,104
Inventories	(5,896)			1,919
Cash and cash equivalents	(5,554)		150
Borrowings	(21,050)		660	60,306
Trade and other payables	(22,933)		917	19,749
Provisions	$ (432)		$ (2)	$ 969
New Pharm Drugstores Ltd. [Member]
Fair value of identifiable assets and assumed liabilities:
Properties, plant and equipment		$ 200
Inventories		380
Trade and other receivables		335
Cash and cash equivalents		25
Borrowings		(260)
Trade and other payables		(930)
Employee benefits		(25)
Provisions		(15)
Total net identifiable assets		(290)
Goodwill (pending allocation)		920
Total		$ 630