SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue recognition (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 (¥)
|
Dec. 31, 2023
CNY (¥)
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| Goodwill [Line Items] | ||||
| Variable consideration | ¥ 196,912 | ¥ 47,935 | ¥ 0 | |
| Extended warranty service expense | 4,285 | 8,909 | 10,413 | |
| Accrued warranty liability | ||||
| Balance as of the beginning of the year | 43,607 | 28,425 | 17,694 | |
| Warranty provision | 48,731 | 32,078 | 26,247 | |
| Consumption | (14,666) | (16,896) | (15,516) | |
| Balance as of the end of the year | ¥ 77,672 | $ 11,107 | ¥ 43,607 | ¥ 28,425 |
| Minimum | ||||
| Goodwill [Line Items] | ||||
| Period for extended warranty | 1 year | 1 year | ||
| Maximum | ||||
| Goodwill [Line Items] | ||||
| Period for extended warranty | 2 years | 2 years | ||
| X | ||||||||||
- Definition The period for extended warranty. No definition available.
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- Definition Represents the amount of variable consideration which is a nonfixed portion of revenue arising from customer contracts that is subject to adjustment. No definition available.
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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/exampleRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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- Details
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