v3.25.0.1
Description of Business - Additional Information (Detail)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Jun. 17, 2024
USD ($)
$ / shares
shares
Jun. 16, 2024
USD ($)
shares
Dec. 08, 2023
shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Segment
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
Apr. 30, 2024
shares
Nature Of Operations [Line Items]                
Allocated share based compensation | $         $ 534,138 $ 0 $ 0  
Temporary equity shares authorized           69,803,765    
Common stock shares converted from one class to another 331,110              
Number of operating segment | Segment         1      
Number of reportable segment | Segment         1      
IPO [Member]                
Nature Of Operations [Line Items]                
Temporary equity shares authorized 20,000,000              
Restricted Stock Units (RSUs) [Member] | IPO [Member]                
Nature Of Operations [Line Items]                
Shares issued, price per share | $ / shares $ 37              
Allocated share based compensation | $       $ 488,300        
Adjustment related to tax witholding for share based compensation | $ $ 70,800              
Restricted stock units vested during the period 4,568,291              
Common Class A [Member]                
Nature Of Operations [Line Items]                
Common stock shares authorized         1,000,000,000 200,228,024   204,590,500
Common stock shares outstanding         157,076,972 58,367,961    
Common Class A [Member] | IPO [Member]                
Nature Of Operations [Line Items]                
Stock issued during period, shares, new issues 11,100,000              
Shares issued, price per share | $ / shares $ 37              
Proceeds from initial public offering | $ $ 382,000              
Stock issuance costs | $ $ 28,700              
Common stock shares authorized 1,000,000,000              
Common Class A [Member] | Restricted Stock Units (RSUs) [Member]                
Nature Of Operations [Line Items]                
Share-based payment arrangement, shares withheld for tax withholding obligation 1,911,316              
Restricted stock shares issued during the period net of forfeitures shares 4,563,164              
Common Class B [Member]                
Nature Of Operations [Line Items]                
Common stock shares authorized         5,500,000 5,374,899    
Common stock shares outstanding 5,043,789       5,043,789 0    
Common Class B [Member] | IPO [Member]                
Nature Of Operations [Line Items]                
Common stock shares authorized 5,500,000              
Series A To Series G Redeemable Convertible Preferred Stock Other Than Class B [Member]                
Nature Of Operations [Line Items]                
Temporary equity converted into permanent equity common stock shares 66,309,550              
Series B B One And B Two Redeemable Convertible Preferred Stock [Member]                
Nature Of Operations [Line Items]                
Temporary equity converted into permanent equity common stock shares 5,374,899              
Series G Three Redeemable Convertible Preferred Stock [Member] | Investor Agreement With Series G Three Redeemable Preferred Stockholders [Member]                
Nature Of Operations [Line Items]                
Stock issued during the period shares new issues to the holders of temporary equity 236,719              
Class A Voting Common Stock [Member]                
Nature Of Operations [Line Items]                
Stock issued during the period value stock dividend | $   $ 188,200            
Common stock dividend shares   5,098,799            
Class A Voting Stock [Member]                
Nature Of Operations [Line Items]                
Conversion of non voting common stock into voting stock shares   5,069,477            
Class A Voting Stock [Member] | IPO [Member] | Excercise Of Warrants [Member]                
Nature Of Operations [Line Items]                
Stock issued during period, shares, new issues     109,459