v3.25.2
Digital assets (Details)
1 Months Ended 6 Months Ended
Aug. 31, 2025
USD ($)
item
Aug. 06, 2025
USD ($)
item
Jun. 30, 2025
USD ($)
item
Dec. 31, 2024
USD ($)
item
Nov. 30, 2024
USD ($)
item
Crypto Asset, Activity [Line Items]          
Purchase of BITMAIN Antiminer | item         30,000
Number of Bitcoin pledged to BITMAIN | item     968 968  
Digital assets - pledged for miner purchase     $ 103,744,000 $ 92,389,000  
Miner purchase liability     $ 100,910,000 $ 15,096,000  
BITMAIN Antminer          
Crypto Asset, Activity [Line Items]          
Purchase of BITMAIN Antiminer | item 17,280        
Stated purchase price $ 319,500,000        
Exahash per second | item 14.86        
BITMAIN Miners          
Crypto Asset, Activity [Line Items]          
Purchase of BITMAIN Antiminer | item 16,299        
Amount paid $ 314,000,000        
Exahash per second | item 14.02        
Application of deposit and certain expenses. $ 46,000,000        
Bitcoin          
Crypto Asset, Activity [Line Items]          
Amount of bitcoin deposited         $ 968
Number of Bitcoin pledged to BITMAIN     968 968  
Digital assets - pledged for miner purchase     $ 103,744,000 $ 92,389,000  
Bitcoin redemption option initial fair value     $ 15,100,000    
Number of bitcoin purchased | item   1,726      
Purchase value   $ 205,600,000      
Average price per bitcoin   119,120      
Bitcoin | BITMAIN Miners          
Crypto Asset, Activity [Line Items]          
Number of Bitcoin pledged to BITMAIN | item 2,234