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Redeemable Owners' Investment (Details) ¥ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 10, 2018 HKD ($) | May 31, 2019 CNY (¥) | Jun. 24, 2016 CNY (¥) | Sep. 01, 2015 CNY (¥) | Dec. 31, 2020 | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 | Dec. 31, 2016
Redeemable Owners' Investment (Details) [Line Items] |  |  |  |  |  |  |  |  |
Total consideration (in Yuan Renminbi) |  | ¥ 15,010 |  |  |  | ¥ 1,275 |  |  |
Voting rights, description |  |  |  |  | (1) Merger, spin-off, dismissal, acquisition, liquidation which change the legal form of Shenzhen Meten; (2) Material change of the principal activities of Shenzhen Meten; (3) Provide external guarantee or loans with amounts over RMB5,000; and (4) Initiate a litigation or arbitration with the potential claim of over RMB1,000. |  |  |  |
Ordinary shares (in Dollars) | $ | $ 380,000 |  |  |  |  |  |  |  |
Shenzhen Meten [Member] |  |  |  |  |  |  |  |  |
Redeemable Owners' Investment (Details) [Line Items] |  |  |  |  |  |  |  |  |
Ordinary shares (in Dollars) | $ |  |  |  |  |  |  | $ 36,416,120 |  |
First Tranche Redeemable Owners’ Investment [Member] |  |  |  |  |  |  |  |  |
Redeemable Owners' Investment (Details) [Line Items] |  |  |  |  |  |  |  |  |
Total consideration (in Yuan Renminbi) |  |  |  | ¥ 20,000 |  |  |  |  |
Equity interest, percentage |  |  |  |  |  |  |  |  | 1.81%
Annual interest, percentage |  |  |  |  | 10.00% |  |  |  |
Second Tranche Redeemable Owners’ Investment [Member] |  |  |  |  |  |  |  |  |
Redeemable Owners' Investment (Details) [Line Items] |  |  |  |  |  |  |  |  |
Total consideration (in Yuan Renminbi) |  |  | ¥ 170,000 |  |  |  |  |  |
Equity interest, percentage |  |  |  |  |  |  |  | 9.62% |
Annual interest, percentage |  |  |  | 10.00% |  |  |  |  |

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