XML 135 R111.htm IDEA: XBRL DOCUMENT
v3.21.1

Revenues and Other Income - Additional information (Details) - EUR (€) € in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Ifrs Collaborative Arrangement And Arrangement Other Than Collaborative Line items |  |  |  |
Milestone payments received |  |  |  | € 0.0
AbbVie |  |  |  |
Ifrs Collaborative Arrangement And Arrangement Other Than Collaborative Line items |  |  |  |
Milestone payments received following the enrollment of first patient |  | € 3.5 |  |
Milestone payments received |  |  | € 0.0 |
Contribution to Company's revenue (as a percent) |  | 51.40% |  |
BI |  |  |  |
Ifrs Collaborative Arrangement And Arrangement Other Than Collaborative Line items |  |  |  |
Milestone payments received |  |  |  | € 2.5
Contribution to Company's revenue (as a percent) |  | 36.90% |  |
Reversal of contract liabilities | € 2.1 | € 2.2 |  |

X
- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_34&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_PercentageOfEntitysRevenue
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the cumulative amount of research funding received in a collaborative arrangement. + References No definition available. + Details
Name: | iva_CollaborativeArrangementMilestonePaymentsReceived
Namespace Prefix: | iva_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the milestone payments received following the enrollment of first patient in a collaborative arrangement. + References No definition available. + Details
Name: | iva_CollaborativeArrangementMilestonePaymentsReceivedFollowingEnrollmentOfFirstPatient
Namespace Prefix: | iva_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the amount of reversal of contract liabilities recognized under IFRS 15. + References No definition available. + Details
Name: | iva_CollaborativeArrangementReversalOfContractLiabilities
Namespace Prefix: | iva_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Disclosure of information about collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations. + References No definition available. + Details
Name: | iva_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeLineItems
Namespace Prefix: | iva_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | iva_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeAxis=iva_ResearchCollaborationWithAbbvieMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iva_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeAxis=iva_ResearchAndDevelopmentCollaborationWithBoehringerIngelheimMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |