Short-term loans and current portion of long-term debt - Additional Information (Details) ¥ in Thousands, $ in Millions |
12 Months Ended | ||
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Dec. 31, 2025
CNY (¥)
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Dec. 31, 2024
CNY (¥)
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Dec. 31, 2025
USD ($)
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| Debt Instrument [Line Items] | |||
| Maturity Date | within one year | within one year | |
| Long-term bank loans | ¥ 3,262,316 | ¥ 657 | |
| Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 2.30% | 2.30% | |
| One Year Revolving Loan Facilities [Member] | |||
| Debt Instrument [Line Items] | |||
| Aggregate principal amount | ¥ 920,000 | $ 131.6 | |
| Average outstanding amount | 0 | ||
| current portion of long-term bank loans and other long-term borrowing | |||
| Debt Instrument [Line Items] | |||
| Long-term bank loans | ¥ 3,069,000 | ||
| Minimum [Member] | |||
| Debt Instrument [Line Items] | |||
| Short-term loans | 1.15% | 2.30% | 1.15% |
| Maximum [Member] | |||
| Debt Instrument [Line Items] | |||
| Short-term loans | 1.74% | 2.70% | 1.74% |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Average amount borrowed under the credit facility during the period. No definition available.
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate. No definition available.
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- Definition Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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