v3.26.1
Employee benefit plans - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
ESPP weighted average purchase price of shares purchased (usd per share)       $ 0.73 $ 0.68
Unearned stock-based compensation, expected recognition period 1 year 11 months 1 day        
Share-based Payment Arrangement, Expense, Tax Benefit       $ 0 $ 0
Stock Issued During Period, Shares, Employee Stock Purchase Plans       400,000 600,000
Stock-based compensation   $ 4,056 $ 5,116 $ 7,054 $ 10,486
Deferred Bonus          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation   (400) $ 600 $ 100 $ 900
RSUs [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares granted (shares)       7,082,000  
Weighted average price of shares granted (usd per share)       $ 1.11  
Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares granted (shares)       3,279,000  
Weighted average price of shares granted (usd per share)       $ 1.11  
Employee Stock Purchase Plan Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase Price of Common Stock, Percent       85.00%  
Stock Options, ESPP and Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unearned stock-based compensation costs   $ 17,300   $ 17,300  
2024 Equity Incentive Plans | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration Period       10 years  
2024 Equity Incentive Plans | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award Vesting Period       3 years  
2024 Equity Incentive Plans | Minimum [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award Vesting Period       1 year  
2024 Equity Incentive Plans | Minimum [Member] | RSUs [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award Vesting Period       2 years  
2024 Equity Incentive Plans | Maximum [Member] | Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award Vesting Period       4 years  
2024 Equity Incentive Plans | Maximum [Member] | RSUs [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award Vesting Period       4 years