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Warrant liabilities (Tables) | 12 Months Ended
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Dec. 31, 2022
Class of Warrant or Right [Line Items] |
Schedule of warrants are remeasured utilizing key assumptions | ​
​ | ​ | ​ | ​
​ | ​ | As of December 31, |
​ |  | 2020 | ​
Risk-free rate of return (%) |  | 3.34 | %
Volatility |  | 46.85 | %
Expected dividend yield |  | 0.0 | %
Expected term |  | 3.6 | years
Fair value of the underlying ordinary shares |  | RMB31.34 | ​
Schedule of changes in warrant liability measured at fair value using unobservable inputs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Change in |  | ​ | ​ | ​ |  | ​
​ | ​ | ​ | ​ | ​ | ​ | fair value | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 1, | ​ | ​ | ​ | included | ​ | Foreign exchange | ​ | ​ | ​ | December 31,
​ | ​ | 2020 | ​ | Addition | ​ | in losses | ​ | translation |  | Settlement | ​ | 2020
​ | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB
Liabilities |  |  |  |  |  |  |  | ​ | ​ |  |  |
Warrant liabilities |  | 40,635 |  | — |  | 39,635 |  | — | ​ | — |  | 80,270
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Change in | ​ | ​ |  | ​ |  | ​
​ | ​ | ​ | ​ | ​ | ​ | fair value | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 1, | ​ | ​ | ​ | included | ​ | Foreign exchange | ​ | Settlement | ​ | December 31,
​ | ​ | 2021 | ​ | Addition | ​ | in losses | ​ | translation | ​ | (See Note 19) | ​ | 2021
​ | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB
Liabilities |  |  |  |  |  |  | ​ | ​ |  |  |  |
Warrant liabilities |  | 80,270 |  | — |  | 111,299 | ​ | — |  | (191,569) |  | —
Schedule of movement of ECARX warrants | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Change in fair | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | January 1, | ​ | ​ | ​ | value included | ​ | Foreign exchange | ​ | ​ | ​ | December
​ |  | 2022 |  | Addition |  | in losses |  | translation |  | Settlement |  | 31, 2022
​ | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB | ​ | RMB
Liabilities | ​ |  | ​ |  | ​ |  | ​ |  | ​ |  | ​ |
ECARX Public Warrants | ​ | — | ​ | 8,277 | ​ | 1,991 | ​ | 78 | ​ | — | ​ | 10,346
ECARX Private Warrants |  | — |  | 4,895 |  | 1,254 |  | 49 |  | — |  | 6,198
Total |  | — |  | 13,172 |  | 3,245 |  | 127 |  | — |  | 16,544
ECARX Private Warrants |
Class of Warrant or Right [Line Items] |
Schedule of warrants are remeasured utilizing key assumptions | ​
​ | ​ | ​ | ​
​ | ​ | As of December 31, | ​
​ |  | 2022 | ​
Risk-free rate of return (%) | ​ | 3.99 | %
Volatility | ​ | 6.99 | %
Expected dividend yield | ​ | 0.0 | %
Expected term | ​ | 5.0 | years
Fair value of the underlying ordinary shares | ​ | US$7.99 (equivalent to RMB55.11) |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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