Business combinations - Acquisition-related costs (Details) - TCR2 Therapeutics - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
---|---|---|
Jun. 30, 2023 |
Dec. 31, 2023 |
|
Business Acquisition [Line Items] | ||
Legal, professional and accounting fees | $ 4,993 | $ 5,174 |
Bankers' fees | 2,172 | 2,172 |
Total acquisition-related costs | 7,165 | $ 7,346 |
Issuance costs incurred relating to the issuance of shares to TCR2 stockholders | $ 0 |