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Note 16 - Capital Management - Summary of Gains and Losses on Investment Portfolio (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended | 22 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 13, 2023 | Jun. 30, 2018 | Jul. 31, 2024 | Jan. 31, 2024 | Jun. 30, 2023 | Jan. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2023
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |  |  |  |  |  |  |  |
Share repurchases, amount |  |  |  |  |  |  | $ 0 | $ 32,695 | $ 146,068 |
Dividends, per share |  |  | $ 0.4 | $ 0.4 | $ 0.4 | $ 0.8 | $ 0.8 | $ 1.2 |  |
Dividends, amount |  |  |  |  |  |  | $ 70,398 | $ 107,222 |  |
ADS [member] |  |  |  |  |  |  |  |  |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |  |  |  |  |  |  |  |
Share repurchases, number of shares |  | 36,971,296 |  |  |  |  | 0 | 2,765,346 | 26,729,495 | 6,119,841
Shares repurchased, average price paid per share |  |  |  |  |  |  | $ 0 | $ 11.82 | $ 5.46 |
Share repurchases, amount |  | $ 239,000 |  |  |  |  | $ 0 | $ 32,695 | $ 146,068 | $ 50,000
Dividends, per share | $ 0.4 |  | $ 0.4 | $ 0.4 |  |  | $ 0.8 | $ 1.2 | $ 0 |
Dividends, amount |  |  |  |  |  |  | $ 70,398 | $ 107,222 | $ 0 |
Total capital returns |  |  |  |  |  |  | $ 70,398 | $ 139,917 | $ 146,068 |

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