Summary of significant accounting policies - Revenue recognition - Narrative (Details) ¥ in Thousands, $ in Thousands |
12 Months Ended | ||||
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Dec. 31, 2025
CNY (¥)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
CNY (¥)
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Dec. 31, 2023
CNY (¥)
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Dec. 31, 2022
CNY (¥)
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| Principles of consolidation | |||||
| Period of unconditional right of return | 7 days | 7 days | |||
| Amount of unfulfilled performance obligations | ¥ 1,673,100 | ¥ 1,801,200 | |||
| Total net revenues | 105,919,546 | $ 15,146,294 | 108,420,832 | ¥ 112,856,020 | |
| Amount of contract assets balance | 318,500 | 360,500 | |||
| Advances from customers | 2,564,100 | 2,706,000 | |||
| Refund liabilities | 468,500 | 510,700 | 494,800 | ¥ 339,800 | |
| Reward Points | |||||
| Principles of consolidation | |||||
| Amount of unfulfilled performance obligations | 422,600 | 394,100 | |||
| Service | |||||
| Principles of consolidation | |||||
| Total net revenues | 5,120,000 | 4,960,000 | 4,940,000 | ||
| Lease | |||||
| Principles of consolidation | |||||
| Total net revenues | ¥ 3,400,000 | ¥ 2,730,000 | ¥ 2,300,000 | ||
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment. No definition available.
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Period of time for unconditional right of return, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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