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Consolidated Statements of Changes in Shareholders' Equity - ARS ($) $ in Millions | Share Capital [Member] | Treasury Shares [Member] | Inflation Adjustment of Share Capital and Treasury Shares [Member] | [1] | Share Premium [Member] | Additional Paid-in Capital from Treasury Shares [Member] | Legal Reserves [Member] | CNV 609/12 Resolution Special Reserve [Member] | [2] | Cost of Treasury Shares [Member] | Changes in Non-Controlling Interest [Member] | Reserve for Share-Based Payments [Member] | Reserve for Future Dividends [Member] | Cumulative Translation Adjustment Reserve [Member] | Hedging Instruments [Member] | Revaluation Surplus [Member] | Special Reserve [Member] | Reserve for Defined Contribution Plans [Member] | Other Reserves from Subsidiaries [Member] | Other Reserves [Member] | (Accumulated deficit)/Retained Earnings [Member] | Subtotal [Member] | Non-controlling Interests [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Jun. 30, 2015 | $ 574 | $ 5 | $ 123 | $ 793 | $ 7 | $ 117 | $ 2,755 | $ (34) | $ 4 | $ 64 |  | $ 394 |  |  |  |  |  | $ 428 | $ 7,235 | $ 12,037 | $ 943 | $ 12,980
Changes In Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) / Profit for the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,534 | 9,534 | 544 | 10,078
Other comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 118 | (37) |  |  | (10) |  | 71 |  | 71 | 4,062 | 4,133
Total comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 118 | (37) |  |  | (10) |  | 71 | 9,534 | 9,605 | 4,606 | 14,211
Incorporated by business combination |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,630 | 8,630
Cumulative translation adjustment for interest held before business combination |  |  |  |  |  |  |  |  |  |  |  | (91) |  |  |  |  |  | (91) |  | (91) |  | (91)
Share of changes in subsidiaries' equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37 | 37 |  | 37 | 51 | 88
Appropriation of retained earnings approved by Shareholders meeting held |  |  |  |  |  |  |  |  |  |  | 520 |  |  |  |  |  |  | 520 | (520) |  |  |
Reserve for share-based compensation | 1 | (1) |  |  | 9 |  |  | 5 |  | 3 |  |  |  |  |  |  |  | 8 |  | 17 | 34 | 51
Capital reduction of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (4) | (4)
Dividends distribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (615) | (615)
Changes in non-controlling interest |  |  |  |  |  |  |  |  | 17 |  |  |  |  |  |  |  |  | 17 |  | 17 | 568 | 585
Capital contribution from non-controlling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11 | 11
Dividends reimbursement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 | 10 |  | 10
Ending balance at Jun. 30, 2016 | 575 | 4 | 123 | 793 | 16 | 117 | 2,755 | (29) | 21 | 67 | 520 | 421 | (37) |  |  | (10) | 37 | 990 | 16,259 | 21,632 | 14,224 | 35,856
Changes In Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) / Profit for the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,030 | 3,030 | 2,190 | 5,220
Other comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 973 | 56 |  |  | (5) |  | 1,024 |  | 1,024 | 3,489 | 4,513
Total comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 973 | 56 |  |  | (5) |  | 1,024 | 3,030 | 4,054 | 5,679 | 9,733
Out-of-period adjustments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (133) | (133)
Incorporated by business combination |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40 | 40
Irrevocable contributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2
Capitalization of contributions at subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1) | (1)
Issuance of capital of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,267 | 2,267
Appropriation of retained earnings approved by Shareholders meeting held |  |  |  |  |  | 26 | (4) |  |  |  | (26) |  |  |  |  |  |  | (26) | 4 |  |  |
Reserve for share-based compensation |  |  |  |  | 1 |  |  | 1 |  | 11 |  |  |  |  |  |  |  | 12 |  | 13 | 87 | 100
Capital reduction of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (6) | (6)
Dividends distribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,232) | (2,232)
Changes in non-controlling interest |  |  |  |  |  |  |  |  | 165 |  |  |  |  |  |  |  |  | 165 |  | 165 | 1,545 | 1,710
Ending balance at Jun. 30, 2017 | 575 | 4 | 123 | 793 | 17 | 143 | 2,751 | (28) | 186 | 78 | 494 | 1,394 | 19 |  |  | (15) | 37 | 2,165 | 19,293 | 25,864 | 21,472 | 47,336
Changes In Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) / Profit for the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,003 | 15,003 | 6,292 | 21,295
Other comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 566 | (5) | 45 |  | (77) |  | 529 |  | 529 | 13,585 | 14,114
Total comprehensive income for the year |  |  |  |  |  |  |  |  |  |  |  | 566 | (5) | 45 |  | (77) |  | 529 | 15,003 | 15,532 | 19,877 | 35,409
Irrevocable contributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 1
Capitalization of contributions at subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 | 7
Appropriation of retained earnings approved by Shareholders meeting held |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,081 |  |  | 2,081 | (2,081) |  |  |
Share-based compensation |  |  |  |  | 2 |  |  | 3 |  | 1 |  |  |  |  |  |  |  | 4 |  | 6 | 43 | 49
Dividends distribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,400) | (1,400) | (1,490) | (2,890)
Changes in non-controlling interest |  |  |  |  |  |  |  |  | (2,657) |  |  |  |  |  |  |  |  | (2,657) |  | (2,657) | 4,545 | 1,888
Loss of control in subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (11) |  | (11) | 11 |  | (7,335) | (7,335)
Dividends reimbursement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 76 | 76 |  | 76
Ending balance at Jun. 30, 2018 | $ 575 | $ 4 | $ 123 | $ 793 | $ 19 | $ 143 | $ 2,751 | $ (25) | $ (2,471) | $ 79 | $ 494 | $ 1,960 | $ 14 | $ 45 | $ 2,081 | $ (103) | $ 37 | $ 2,111 | $ 30,902 | $ 37,421 | $ 37,120 | $ 74,541
[1] | Includes Ps.1 of Inflation adjustment of treasury stock. See Note 16.
[2] | Related to CNV General Resolution N 609/12.

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- Definition The decrease in equity resulting from a reduction in issued capital. [Refer: Issued capital] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_106_d&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_ReductionOfIssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of capitalized contributions during the period. + References No definition available. + Details
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Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Refers to the amount of changes in non controlling interest. + References No definition available. + Details
Name: | irsa_ChangesInNoncontrollingInterest
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Refers to the amount of cumulative translation adjustment for interest held before business combination. + References No definition available. + Details
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Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The increase (decrease) in equity through changes in ownership interests in subsidiaries that result in loss of control. + References No definition available. + Details
Name: | irsa_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatResultInLossOfControl
Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Refers to the amount of out of period adjustments. + References No definition available. + Details
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Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Refers to the amount of reimbursement of expired dividends. + References No definition available. + Details
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Namespace Prefix: | irsa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration