XML 77 R57.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Summary of significant accounting policies - Recent accounting pronouncements (Details) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Amount of outstanding payment obligations under the supplier finance program ¥ 221,523 ¥ 186,261
Supplier Finance Program, Obligation, Current, Statement of Financial Position [Extensible Enumeration] Accounts Payable And Notes Payable, Current Accounts Payable And Notes Payable, Current
Amount of assets pledged to secure outstanding payments ¥ 15,651 ¥ 15,615
Balance at the beginning of the year 186,261 228,104
Invoices confirmed during the year 621,071 392,323
Confirmed invoices paid during the year (585,809) (434,166)
Balance at the end of the year ¥ 221,523 ¥ 186,261
Minimum    
Majority of suppliers, term 60 days  
Maximum    
Majority of suppliers, term 180 days