v3.26.3
Commitments and Contingencies - Subscription Agreement (Details)
2 Months Ended
Aug. 06, 2026
Oct. 01, 2025
USD ($)
$ / shares
shares
Nov. 30, 2025
USD ($)
item
shares
Sep. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Sep. 30, 2025
USD ($)
Aug. 19, 2025
USD ($)
Commitments and Contingencies                  
Number consecutive business days 33 days                
Number of consecutive business days during which the market value 33 days                
Stockholders' equity       $ 137,024,961 $ 83,766,236 $ 123,888,528 $ 150,398,743 $ (362,717) $ 0
Subscription Agreements | Private Placement | Avalanche Treasury Company LLC ("OpCo") | SPAC and certain investors                  
Commitments and Contingencies                  
Price per unit issued | $ / shares   $ 10              
Aggregate value of units agreed to issue   $ 216,000,000              
Class A common stock converted per unit | shares   1              
Fair value of gross proceeds from issuance of units     $ 178,200,000            
Cash proceeds from issuance of units     $ 96,500,000            
Number of USD Coin proceeds from issuance of units | item     22,300,205            
Value of USD Coin proceeds from issuance of units     $ 22,300,000            
Number of AVAX proceeds from issuance of units | item     3,340,696            
Value of AVAX proceeds from issuance of units     $ 59,400,000            
Number of membership units issued | shares     21,235,349