The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 137
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_137_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of other equity instruments (ie other than share options) granted in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase in other equity instruments from dividend.

+ References

No definition available.

+ Details

Name:	opra_NumberOfInstrumentsOtherEquityInstrumentsIncreaseFromDividends
Namespace Prefix:	opra_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Statement 1 Line Items

+ References

No definition available.

+ Details

Name:	opra_Statement1LineItems
Namespace Prefix:	opra_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_PotentialOrdinaryShareTransactionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

Note 18 - Events After the Reporting Period -Additional Information (Details)		1 Months Ended	2 Months Ended
	Feb. 28, 2025 shares	Dec. 31, 2024 $ / shares	Feb. 28, 2025 shares $ / shares
Statement Line Items [Line Items]
Number of other equity instruments granted in share-based payment arrangement			1,853,450
Weighted average grant date fair value of RSUs granted \| $ / shares			$ 19.67
Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners per share (in dollars per share) \| $ / shares		$ 0.4	$ 0.4
Potential ordinary share transactions [member] \| Restricted share units [member]
Statement Line Items [Line Items]
Number of Instruments, Other Equity Instruments, Increase From Dividends (in shares)			65,572
Potential ordinary share transactions [member] \| ADS equivalent [member]
Statement Line Items [Line Items]
Number of Instruments, Other Equity Instruments, Increase From Dividends (in shares)	1,020,700