Aggregate Fair Value, Other Equity Instruments Granted

No definition available.

Name:	dava_AggregateFairValueOtherEquityInstrumentsGranted
Namespace Prefix:	dava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Business Combination, Contingent Consideration Arrangements, Payment Period

+ References

No definition available.

+ Details

Name:	dava_BusinessCombinationContingentConsiderationArrangementsPaymentPeriod
Namespace Prefix:	dava_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Contingent Consideration, Payout, Percent

+ References

No definition available.

+ Details

Name:	dava_ContingentConsiderationPayoutPercent
Namespace Prefix:	dava_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Deferred Consideration, Acquisition-Date Fair Value

+ References

No definition available.

+ Details

Name:	dava_DeferredConsiderationAcquisitionDateFairValue
Namespace Prefix:	dava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Deferred Consideration Paid

+ References

No definition available.

+ Details

Name:	dava_DeferredConsiderationPaid
Namespace Prefix:	dava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Equity Consideration, Acquisition-Date Fair Value

+ References

No definition available.

+ Details

Name:	dava_EquityConsiderationAcquisitionDateFairValue
Namespace Prefix:	dava_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Identifiable Intangible Assets, Tax Base

+ References

No definition available.

+ Details

Name:	dava_IdentifiableIntangibleAssetsTaxBase
Namespace Prefix:	dava_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period2

+ References

No definition available.

+ Details

Name:	dava_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod2
Namespace Prefix:	dava_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted Average Share Price, Acquisition Date

+ References

No definition available.

+ Details

Name:	dava_WeightedAverageSharePriceAcquisitionDate
Namespace Prefix:	dava_
Data Type:	dtr-types1:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph f
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CashTransferred
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount, at acquisition date, of contingent consideration arrangements recognised as consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph g
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_g_i&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ContingentConsiderationRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for customer-related intangible assets acquired in a business combination. [Refer: Customer-related intangible assets [member]; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_CustomerrelatedIntangibleAssetsRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recognised as of the acquisition date for deferred tax liabilities assumed in a business combination. [Refer: Deferred tax liabilities; Business combinations [member]]

+ References

+ Details

Name:	ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The gains (losses) on financial liabilities at fair value through profit or loss. [Refer: Financial liabilities at fair value through profit or loss]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 20
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_20_a_i&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GainsLossesOnFinancialLiabilitiesAtFairValueThroughProfitOrLoss
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of goodwill in a business combination that is expected to be deductible for tax purposes. [Refer: Goodwill; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph k
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_k&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GoodwillExpectedDeductibleForTaxPurposes
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of instruments or interests issued or issuable at acquisition date for equity interests of the acquirer transferred as consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph f
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_BusinessCombinationsAxis=dava_BusinessAgilityConsultingBACMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=dava_RestrictedShareUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis=ifrs-full_CustomerrelatedIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfOrdinarySharesAxis=dava_ClassAOrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=dava_DEKMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Business combinations - Acquisition of Business Agility Consulting - Narrative (Details)			1 Months Ended	5 Months Ended	12 Months Ended
	Jun. 09, 2023 GBP (£) shares £ / shares	Feb. 08, 2022 GBP (£) shares £ / shares	Jun. 30, 2023 shares	Jun. 30, 2022 GBP (£) shares	Jun. 30, 2023 GBP (£) shares	Jun. 30, 2022 GBP (£) shares	Jun. 30, 2021 GBP (£)	Oct. 06, 2022 GBP (£)
Disclosure of detailed information about business combination [line items]
Number of shares to be issued (in shares) \| shares			215,792	0	215,792	0
Fair value movement of financial liabilities					£ 12,247,000	£ 0	£ 0
Business Agility Consulting BAC
Disclosure of detailed information about business combination [line items]
Initial cash consideration		£ 5,400,000
Equity consideration		£ 1,505,000
Share price (in GBP per share) \| £ / shares		£ 94.80
Fair value of deferred consideration		£ 1,225,000
Contingent consideration payment period		20 months
Deferred consideration, settled				£ 200,000	£ 0
Fair value of contingent consideration		£ 6,901,000
Contingent consideration, payout, in percentage			0.00%		0.00%
Fair value movement of financial liabilities					£ 7,300,000
Deferred tax liability		296,000
Intangible assets - Client relationships		1,240,000
Goodwill expected to be deductible for tax purposes		£ 0
Business Agility Consulting BAC \| Forecast
Disclosure of detailed information about business combination [line items]
Contingent consideration, payout, in percentage		95.00%
Business Agility Consulting BAC \| Restricted share unit
Disclosure of detailed information about business combination [line items]
Aggregate fair value of other equity instruments granted		£ 1,500,000
Business Agility Consulting BAC \| Client relationship
Disclosure of detailed information about business combination [line items]
Deferred tax liability		300,000
Intangible assets - Client relationships		1,200,000
Tax base of intangible assets		£ 0						£ 0
Business Agility Consulting BAC \| Maximum
Disclosure of detailed information about business combination [line items]
Vesting period					4 years
Business Agility Consulting BAC \| Minimum
Disclosure of detailed information about business combination [line items]
Vesting period					3 years
Business Agility Consulting BAC \| Class A ordinary shares
Disclosure of detailed information about business combination [line items]
Number of shares to be issued (in shares) \| shares		15,874
DEK Corporation Pty Ltd
Disclosure of detailed information about business combination [line items]
Initial cash consideration	£ 44,272,000
Equity consideration	£ 5,337,000
Share price (in GBP per share) \| £ / shares	£ 36.41
Fair value of deferred consideration	£ 2,468,000
Contingent consideration payment period			24 months
Fair value of contingent consideration	5,071,000
Deferred tax liability	4,197,000
Intangible assets - Client relationships	£ 16,459,000
DEK Corporation Pty Ltd \| Forecast
Disclosure of detailed information about business combination [line items]
Contingent consideration, payout, in percentage	95.00%
DEK Corporation Pty Ltd \| Client relationship
Disclosure of detailed information about business combination [line items]
Deferred tax liability	£ 4,200,000
Intangible assets - Client relationships	16,500,000
Tax base of intangible assets	£ 0
DEK Corporation Pty Ltd \| Class A ordinary shares
Disclosure of detailed information about business combination [line items]
Number of shares to be issued (in shares) \| shares	146,572