SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Property, Plant and Equipment [Line Items] | |||
| Accumulated deficit | $ (3,157,918) | $ (2,693,698) | |
| Net current liabilities | (1,486,989) | ||
| Net cash used in operating activities | (333,907) | (848,520) | $ (386,932) |
| Asset impairment charges | 51,800 | ||
| Impairment of long-lived assets | $ 47,272 | 0 | 0 |
| Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed [Flag] | false | ||
| Impairment of ROU assets | $ 4,528 | ||
| Impairment loss for intangible assets with indefinite lives | $ 0 | 0 | 0 |
| Financing providers days | 5 years | ||
| Advertising expenditures | $ 37,201 | 134,611 | 150,920 |
| Equity interest as long-term investment | 33,019 | ||
| Employee social benefits | 25,203 | $ 30,564 | $ 46,969 |
| Ningbo Robotics | |||
| Property, Plant and Equipment [Line Items] | |||
| Payments to Acquire Investments | $ 0 | ||
| X | ||||||||||
- Definition Amount of gain (loss) recognized during the reporting period arising from the exchange of internally developed intellectual property for an equity interest. No definition available.
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- Definition The company did not disclose where impairment losses on long-lived assets (held for use) are presented in the income statement or comprehensive income statement. No definition available.
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- Definition Threshold days of shipment for receiving payment from the floor plan financing, 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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- Definition Represents the amount of working capital deficit. No definition available.
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of loss from impairment of right-of-use asset from operating lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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