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Summary of Significant Accounting Policies (Details)
¥ in Thousands
 12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Goodwill [Line Items]        
Equity method investment, impairment ¥ 0   ¥ 0 ¥ 0
Extended warranty service expense 10,413   7,702 676
Accrued warranty liability        
Balance as of the beginning of the year 17,694   13,932 10,042
Warranty provision 26,247   8,467 10,766
Consumption (15,516)   (4,705) (6,876)
Balance as of the end of the year ¥ 28,425 $ 4,004,000 ¥ 17,694 ¥ 13,932
Minimum        
Goodwill [Line Items]        
Period for extended warranty 1 year 1 year    
Maximum        
Goodwill [Line Items]        
Period for extended warranty 2 years 2 years    
Oxigraf Inc.        
Goodwill [Line Items]        
Impairment on goodwill | $   $ 1,982,033