Debt Instrument, Retirement Of Debt

No definition available.

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Namespace Prefix:	acxm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Proceeds from Sale of Disposal Group, Including Discontinued Operations, Cash, Net

+ References

No definition available.

+ Details

Name:	acxm_ProceedsfromSaleofDisposalGroupIncludingDiscontinuedOperations
Namespace Prefix:	acxm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=acxm_AcxiomMarketingSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
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- Details

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SUBSEQUENT EVENT (Details) - USD ($) $ in Thousands		3 Months Ended
SUBSEQUENT EVENT (Details) - USD ($) $ in Thousands	Jul. 02, 2018	Dec. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Subsequent Event [Line Items]
Cash tender offer for common stock			$ 45,766	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Acxiom Marketing Solutions \| Subsequent Event
Subsequent Event [Line Items]
Cash proceeds from disposal of operations	$ 2,300,000
Proceeds from sale of disposal group, disposed of by sale, not discontinued operations	$ 1,700,000
Scenario, Forecast \| Subsequent Event
Subsequent Event [Line Items]
Retirement of debt balance		$ 230,000
Cash tender offer for common stock		500,000
Stock repurchase program, authorized amount		$ 500,000