v3.25.2
Stock-based compensation - Stock options, additional information (Details)
$ / shares in Units, $ in Millions
1 Months Ended 6 Months Ended
Mar. 31, 2025
$ / shares
shares
Jun. 30, 2025
USD ($)
D
$ / shares
shares
Jun. 30, 2024
shares
Employee Stock Option      
Stock-based compensation      
Granted (in shares) 1,000,000 1,000,000 0
Granted (in dollars per share) | $ / shares $ 15 $ 15  
Consecutive trading days | D   20  
Vesting period   3 years  
Number of unvested options outstanding   1,000,000  
Weighted average grant-date fair value of stock options | $ / shares   $ 9.44  
Employee Stock Option | Hut 8 Corp. Rollover Option Plan      
Stock-based compensation      
Unrecognized compensation expense | $   $ 0.3  
Unrecognized compensation expense expected to be recognized over a weighted-average remaining vesting period   1 year  
Employee Stock Option | 2023 Plan      
Stock-based compensation      
Unrecognized compensation expense | $   $ 6.4  
Unrecognized compensation expense expected to be recognized over a weighted-average remaining vesting period   10 months 24 days  
Service-based options      
Stock-based compensation      
Number of unvested options outstanding   640,960