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Related party disclosures - Share subscriptions and private placements (Details) - USD ($) $ / shares in Units, $ in Thousands | Apr. 14, 2023 | Dec. 31, 2022 | Jun. 30, 2023
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Related party disclosures |  |  |
Aggregate shares to be issued | 11,362,506 |  |
Ordinary shares, Par value (in dollars per share) | $ 0.0001 |  |
Share issue price (in dollars per share) | $ 10.00 |  |
Aggregate price of shares to be issued | $ 113,625 |  |
Class B Ordinary Shares |  |  |
Related party disclosures |  |  |
Ordinary shares, Par value (in dollars per share) |  |  | $ 0.0001
Share issue price (in dollars per share) |  | $ 0.004 |
Michael James McMullen |  |  |
Related party disclosures |  |  |
Aggregate price of shares to be issued | 1,500 |  |
Katherine Crouse |  |  |
Related party disclosures |  |  |
Aggregate price of shares to be issued | 250 |  |
Merrin |  |  |
Related party disclosures |  |  |
Aggregate price of shares to be issued | $ 50 |  |
GMM | Class B Ordinary Shares |  |  |
Related party disclosures |  |  |
Number of founder shares transferred | 517,500 |  |

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