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Share capital (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Equity, Class of Treasury Stock [Line Items] |  |  |
Share repurchase program, value of shares repurchased |  |  | $ 99,983
Buyback Program |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Share repurchase program, number of shares repurchased (in shares) | 420,530 |  |
Share repurchase program, value of shares repurchased | $ 100,000 |  |
Buyback Program | Maximum |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Share repurchase program, authorized percentage |  | 10.00% |

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