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v3.25.1

Note 9 - Property and Equipment - Estimated Useful Lives of Property, Plant and Equipment (Details) - Top of range [member] | 12 Months Ended
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Dec. 31, 2024
Office properties [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life (Year) | 7 years
Equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life (Year) | 10 years
Leasehold improvements [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life (Year) | 6 years
Furniture and fixtures [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Useful life (Year) | 5 years

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

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- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_c&doctype=Standard -URIDate 2024-03-27 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=opra_Equipment1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=opra_FurnitureAndFixtures1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |