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Contract balances (Details) - Schedule of deferred revenue and financial liabilities - CNY (¥) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Schedule of deferred revenue and financial liabilities [Abstract] |  |
At the beginning of the year | ¥ 958,910 | ¥ 907,415
Net off the beginning contract assets with financial liabilities, as the result of rights to consideration becoming unconditional | (7,384) | (13,527)
Revenue recognized that was included in the contract liabilities and financial liabilities at the beginning of the year | (644,097) | (709,412)
Increase due to cash received, excluding amount recognized as revenue or refunded | 465,993 | 754,592
Disposal of subsidiaries |  | (5,256)
Business combination (note 4) |  | 25,098
At the end of the year | ¥ 773,422 | ¥ 958,910

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- Definition Increase due to cash received, excluding amount recognized as revenue or refunded. + References No definition available. + Details
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