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Statutory Surplus Reserves - Additional Information (Details)
$ in Thousands, ¥ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
USD ($)
Schedule Of Distribution Of Profits [Line Items]          
Appropriation of net income after taxes to statutory surplus reserve fund required minimum percentage 10.00%        
Reserve level threshold for mandatory transfer percentage 50.00%        
Retained earnings, appropriated $ 1,514,297   $ 50,377    
Dividends payable, current 17,125   11,143    
Restricted paid in capital, additional paid in capital and statutory surplus reserves 1,906,482 ¥ 12,390 442,562 ¥ 2,947  
Amount of restricted net assets for consolidated and unconsolidated subsidiaries 8,512,960       $ 698,552
Common Shares          
Schedule Of Distribution Of Profits [Line Items]          
Dividends payable, current 0   0    
Preferred shareholders          
Schedule Of Distribution Of Profits [Line Items]          
Dividends payable, current $ 17,125   $ 11,143