v3.25.4
Stockholders’ Equity - Additional Information (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2025
USD ($)
class
vote
$ / shares
Dec. 31, 2024
USD ($)
Dec. 31, 2025
USD ($)
class
vote
$ / shares
Dec. 31, 2024
USD ($)
Nov. 30, 2025
year
$ / shares
Jun. 30, 2025
$ / shares
Class of Stock [Line Items]            
Number of classes of common stock | class 2   2      
Exercise price of warrants (in USD per share) $ 68.78   $ 68.78     $ 81.08
Commercial Agreement with Amazon, New Users Acquired Prior to February 1            
Class of Stock [Line Items]            
Exercise price of warrants (in USD per share)         $ 100  
Commercial Agreement with Amazon, Warrants, On Or After 2/1/2026            
Class of Stock [Line Items]            
Exercise price of warrants (in USD per share)         $ 63.06  
Commercial Agreement with Amazon, Warrants            
Class of Stock [Line Items]            
Expenses on sale of warrants | $ $ 61.2 $ 86.8 $ 102.2 $ 194.0    
Unrecognized compensation expense, warrants | $ $ 519.5   $ 519.5      
Weighted-average compensation expense recognition period, warrants     2 years 10 months 24 days      
Commercial Agreement with Amazon, Warrants | Measurement Input, Expected Dividend Rate            
Class of Stock [Line Items]            
Warrants measurement input         0  
Commercial Agreement with Amazon, Warrants | Measurement Input, Expected Term            
Class of Stock [Line Items]            
Warrants measurement input | year         3.6  
Commercial Agreement with Amazon, Warrants | Measurement Input, Price Volatility            
Class of Stock [Line Items]            
Warrants measurement input         0.94  
Commercial Agreement with Amazon, Warrants | Measurement Input, Risk Free Interest Rate            
Class of Stock [Line Items]            
Warrants measurement input         0.0363  
Class A common stock            
Class of Stock [Line Items]            
Number of votes per share | vote 1   1      
Common stock, conversion ratio (in shares) 1   1      
Class B common stock            
Class of Stock [Line Items]            
Number of votes per share | vote 15   15