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Warrant liabilities (Details) - Government Warrants $ in Thousands | 1 Months Ended |
--- | --- | ---
Apr. 30, 2017 USD ($) | Dec. 31, 2020 Y ¥ / shares
Warrant liabilities |  |
Aggregate principal amount | $ 1,125,310 |
Drawdown period | 3 years |
Percentage of equity shares on exercise of warrants to government fund | 2.00% |
Consideration for issuance of warrants | $ 81,950 |
Risk-free rate of return (%) |  |
Warrant liabilities |  |
Warrants measurement input |  | 3.34
Volatility |  |
Warrant liabilities |  |
Warrants measurement input |  | 46.85
Expected dividend yield |  |
Warrant liabilities |  |
Warrants measurement input |  | 0.0
Expected term |  |
Warrant liabilities |  |
Warrants measurement input | Y |  | 3.6
Fair value of the underlying ordinary shares |  |
Warrant liabilities |  |
Warrants measurement input | ¥ / shares |  | 31.34

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