v3.26.1
Share-Based Compensation - Summary of Options Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of options, Outstanding beginning balance 31,266,301  
Number of options, Granted 7,805,926  
Number of options, Exercised (5,519,438)  
Number of options, Forfeited (853,791)  
Number of options, Outstanding ending balance 32,698,998 31,266,301
Number of options, Exercisable 17,196,451  
Weighted average exercise price per option, Outstanding beginning balance $ 0.0114  
Weighted average exercise price per option, Granted 0.0002  
Weighted average exercise price per option, Exercised 0.0002  
Weighted average exercise price per option, Forfeited 0.0002  
Weighted average exercise price per option, Outstanding ending balance 0.0109 $ 0.0114
Weighted average exercise price per option, Exercisable $ 0.0206  
Weighted average remaining contractual term options outstanding 6 years 11 months 19 days 7 years 10 days
Weighted average remaining contractual life, Exercisable 5 years 4 months 6 days  
Aggregated intrinsic value, Outstanding beginning balance $ 106,728 $ 120,175
Aggregated intrinsic value, Exercisable $ 55,965  
Tantan Limited [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of options, Outstanding beginning balance 3,579,267  
Number of options, Repurchased (53,229)  
Number of options, Forfeited (62,877)  
Number of options, Outstanding ending balance 3,463,161 3,579,267
Number of options, Exercisable 3,395,355  
Weighted average exercise price per option, Outstanding beginning balance $ 1.6883  
Weighted average exercise price per option, Repurchased 1.3083  
Weighted average exercise price per option, Forfeited $ 0.0001  
Weighted average exercise price per option, Outstanding ending balance 1.7227 $ 1.6883
Weighted average exercise price per option, Exercisable $ 1.7517  
Weighted average remaining contractual term options outstanding 4 years 8 months 26 days 4 years 7 months 2 days
Weighted average remaining contractual life, Exercisable 4 years 8 months 19 days  
Aggregated intrinsic value, Outstanding beginning balance $ 0 $ 0
Aggregated intrinsic value, Exercisable $ 0