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Note 10 - Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2024
Disclosure of detailed information about intangible assets [abstract] |
Reconciliation of the Carrying Amounts of Goodwill and Intangible Assets | Reconciliation of the Carrying Amounts of Goodwill and Intangible Assets
|  | Goodwill |  |  | Trademark |  |  | Customer relationships |  |  | Technology |  |  | Other intangible assets (1) |  |  | Total |
Net book value as of January 1, 2023 |  | $ | 429,445 |  |  | $ | 70,600 |  |  | $ | 22,790 |  |  | $ | 6,528 |  |  | $ | 66 |  |  | $ | 529,428 |
Additions, net of government grants |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,281 |  |  |  | 524 |  |  |  | 4,805 |
Transfers |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,488 |  |  |  | 1,488 |
Amortization |  |  | — |  |  |  | — |  |  |  | (2,580 | ) |  |  | (3,908 | ) |  |  | (17 | ) |  |  | (6,505 | )
Impairment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (681 | ) |  |  | — |  |  |  | (681 | )
Effect of movements in exchange rates |  |  | 411 |  |  |  | — |  |  |  | — |  |  |  | (18 | ) |  |  | (2 | ) |  |  | 391 |
Net book value as of December 31, 2023 |  |  | 429,856 |  |  |  | 70,600 |  |  |  | 20,210 |  |  |  | 6,200 |  |  |  | 2,059 |  |  |  | 528,926 |
Additions, net of government grants |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 7,263 |  |  |  | 4,749 |  |  |  | 12,013 |
Reclassification |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (801 | ) |  |  | (801 | )
Amortization |  |  | — |  |  |  | — |  |  |  | (2,580 | ) |  |  | (4,079 | ) |  |  | (2 | ) |  |  | (6,662 | )
Disposals |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (2,888 | ) |  |  | (2,888 | )
Impairment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (113 | ) |  |  | — |  |  |  | (113 | )
Effect of movements in exchange rates |  |  | (114 | ) |  |  | — |  |  |  | — |  |  |  | (22 | ) |  |  | (14 | ) |  |  | (151 | )
Net book value as of December 31, 2024 |  | $ | 429,742 |  |  | $ | 70,600 |  |  | $ | 17,630 |  |  | $ | 9,249 |  |  | $ | 3,103 |  |  | $ | 530,325 |
As of December 31, 2023: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 432,937 |  |  | $ | 70,600 |  |  | $ | 40,732 |  |  | $ | 40,852 |  |  | $ | 6,041 |  |  | $ | 591,162 |
Accumulated amortization and impairment |  | $ | (3,081 | ) |  | $ | — |  |  | $ | (20,522 | ) |  | $ | (34,652 | ) |  | $ | (3,982 | ) |  | $ | (62,237 | )
As of December 31, 2024: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 432,823 |  |  | $ | 70,600 |  |  | $ | 40,732 |  |  | $ | 48,104 |  |  | $ | 6,970 |  |  | $ | 599,231 |
Accumulated amortization and impairment |  | $ | (3,081 | ) |  | $ | — |  |  | $ | (23,102 | ) |  | $ | (38,854 | ) |  | $ | (3,867 | ) |  | $ | (68,905 | )
_______________ Other intangible assets include holdings of Celo Dollar (“cUSD”), CELO (see below) and other crypto assets with a total carrying amount of $2.0 million and $3.1 million as of December 31, 2023 and 2024, respectively. These assets have indefinite useful lives and are included in “Other current assets” in the Statement of Financial Position as of December 31, 2024, as Opera expects to realize them within twelve months after the reporting period. See Note 15 for information on crypto assets accounted for as financial assets and presented as cash equivalents.
Summary of Estimated Useful Lives of Intangible Assets with Limited Useful Life | For intangible assets with finite useful lives, amortization is calculated on a straight-line basis over the following periods: • Customer relationships: Up to 15 years. • Technology: Up to 5 years. • Other intangible assets: Up to 5 years.

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