XML 124 R103.htm IDEA: XBRL DOCUMENT v3.24.1
Convertible notes payable - Summary (Details)
¥ in Thousands
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Oct. 25, 2022
CNY (¥)
Oct. 25, 2022
USD ($)
Debt Instrument [Line Items]          
Convertible notes payable ¥ 455,701 $ 64,184,000 ¥ 439,869    
Convertible notes          
Debt Instrument [Line Items]          
Interest rate (in percent) 5.00% 5.00% 5.00% 5.00% 5.00%
Aggregate principal amount ¥ 461,494   ¥ 448,318 ¥ 459,410 $ 65,000,000
Unamortized debt issuance costs (5,793)   (8,449)    
Convertible notes payable 455,701   ¥ 439,869    
Estimate of Fair Value Measurement | Level 3 | Convertible notes          
Debt Instrument [Line Items]          
Fair value ¥ 396,884