v3.26.1
Stockholders’ Equity - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Mar. 31, 2026
Aug. 31, 2025
Mar. 31, 2025
Nov. 30, 2021
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Apr. 30, 2026
Feb. 29, 2024
May 31, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Common stock purchased (in shares)           3,688,863          
Common stock retired (in shares)               8,409,278      
Intrinsic value of options exercised             $ 300 $ 300      
Options granted (in shares)             0 0      
Stock-based compensation             $ 29,635 $ 34,198      
Unrecognized stock-based compensation expense         $ 102,000   $ 102,000        
Unrecognized stock-based compensation expense, expected period of recognition (in years)             2 years 4 months 24 days        
Class A Common Stock                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Stock repurchase program, authorized amount                 $ 100,000   $ 100,000
Stock repurchase program, authorized increase amount                   $ 150,000  
Common stock retired (in shares)             16,992,982        
Average cost per share (in USD per share)           $ 1.46 $ 1.69 $ 1.72      
Common stock retired, amount           $ 5,400 $ 28,700 $ 14,500      
Share repurchase program, remaining authorized, amount         100,000   $ 100,000        
Outstanding stock options                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Minimum threshold of voting power (as a percent)             10.00%        
Minimum proportion of fair market value of stock options granted to grantees that own more than 10% of voting power (as a percent)             110.00%        
Expiration period (in years)             10 years        
Awards granted during period (in shares)             37,510,000        
Outstanding stock options | Minimum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years)             2 years        
Outstanding stock options | Maximum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years)             3 years        
Stock Options - Grantees Owning >10% of Voting Power                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Expiration period (in years)             5 years        
Unvested RSUs | Class A Common Stock | Minimum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years)             2 years        
Unvested RSUs | Class A Common Stock | Maximum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years)             3 years        
Market-Based Performance Stock Unit | CEO                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Stock-based compensation         $ 1,900 $ 800 $ 3,300 $ 2,000      
Market-Based Performance Stock Unit | Class A Common Stock | CEO                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years)     4 years                
Awards granted during period (in shares) 5,857,778 947,867 722,005                
The 2021 Plan                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Shares reserved for issuance (in shares)         46,008,885   46,008,885        
Increase in number of stock available for grant as a proportion of common stock outstanding (as a percent)             5.00%        
The 2021 Plan | Employee Stock | Class A Common Stock                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Shares reserved for issuance (in shares)       8,901,159              
ESPP, purchase price as proportion of common stock price (as a percent)       85.00%              
Common stock purchased (in shares)             307,511 408,404      
The 2021 Plan | Employee Stock | Class B Common Stock                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Shares reserved for issuance (in shares)       89,011,590              
Increase in number of stock available for grant as a proportion of common stock outstanding (as a percent)       1.00%              
The 2021 Plan | Market-Based Performance Stock Unit                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Vesting period (in years) 4 years                    
The 2021 Plan | Market-Based Performance Stock Unit | CEO                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Grant date fair value             $ 14,900 $ 2,600      
The 2021 Plan | Market-Based Performance Stock Unit | Minimum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Target percentage 0.00%                    
The 2021 Plan | Market-Based Performance Stock Unit | Maximum                      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                      
Target percentage 200.00%