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The Company and Significant Accounting Policies - Joint Venture Narrative (Details)
¥ in Millions, $ in Millions
1 Months Ended 12 Months Ended
Jul. 14, 2025
USD ($)
Jun. 30, 2025
Jan. 15, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 30, 2024
USD ($)
Dec. 30, 2024
CNY (¥)
Jan. 26, 2022
USD ($)
Jan. 26, 2022
CNY (¥)
Dec. 31, 2021
Dec. 02, 2021
Dec. 01, 2021
Nov. 30, 2021
Feb. 29, 2024
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Dec. 24, 2021
Related Party Transaction [Line Items]                                    
Proceeds from sale of equity interest in the JV Company       $ 5.5 ¥ 40                          
Equity method investment loss                             $ 77.8 $ 4.8 $ 1.4  
Corporate Joint Venture                                    
Related Party Transaction [Line Items]                                    
Joint venture cumulative percentage ownership after all transactions   39.20%                 48.80%   50.90%          
Third Party Investors | Corporate Joint Venture                                    
Related Party Transaction [Line Items]                                    
Proceeds from sale of equity interest in the JV Company               $ 80.0 ¥ 509                  
Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') | Third Party Investors | Corporate Joint Venture                                    
Related Party Transaction [Line Items]                                    
Equity method investment ownership interest               7.82% 7.82%                 1.10%
Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') | Employee Incentive Plan | Corporate Joint Venture | Employee Incentive Plan                                    
Related Party Transaction [Line Items]                                    
Equity method investment ownership interest                                   3.99%
Third Party Investors | Third Party Investors | Corporate Joint Venture                                    
Related Party Transaction [Line Items]                                    
Increase (Decrease) Equity Method Investment, Ownership Percentage                           0.54%        
JV Company                                    
Related Party Transaction [Line Items]                                    
Equity method investment loss                             $ 76.8      
JV Company | Scenario, Plan                                    
Related Party Transaction [Line Items]                                    
Proceeds from sale of equity interest in the JV Company           $ 68.5 ¥ 500                      
Equity Method Investment, Percentage of Equity Ownership Sold           7.09% 7.09%                      
JV Company | Scenario, Plan | Subsequent Event                                    
Related Party Transaction [Line Items]                                    
Proceeds from sale of equity interest in the JV Company $ 150.0                                  
Equity Method Investment, Percentage of Equity Ownership Sold 20.30%                                  
JV Company | Corporate Joint Venture                                    
Related Party Transaction [Line Items]                                    
Equity method investment ownership interest   39.20% 39.20%                       39.20% 42.80%    
Gain on Change of Equity Interest in The Joint Venture Company     $ 0.5                              
Parent Company | Facility in Liangjiang New Area of Chongqing (the 'Joint Venture')                                    
Related Party Transaction [Line Items]                                    
Joint venture cumulative percentage ownership after all transactions                       50.90%            
Chongqing Funds | Facility in Liangjiang New Area of Chongqing (the 'Joint Venture')                                    
Related Party Transaction [Line Items]                                    
Joint venture cumulative percentage ownership after all transactions               42.20% 42.20% 45.80%   49.10%