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Mezzanine Equity | 12 Months Ended
--- | ---
Dec. 31, 2021
Temporary Equity [Line Items] |
Mezzanine Equity |
20. | MEZZANINE EQUITY
|  | As of December 31, |
|  | 2020 |  |  | 2021 |  |  | 2021 |
|  | RMB |  |  | RMB |  |  | US$ |
Balance as of January 1 |  |  | — |  |  |  | 1,056,237 |  |  |  | 165,747 |
Business combinations (Note 19) |  |  | 1,056,237 |  |  |  | — |  |  |  | — |
Accretion of mezzanine equity |  |  | — |  |  |  | 411,792 |  |  |  | 64,619 |
Balance as of December 31 |  |  | 1,056,237 |  |  |  | 1,468,029 |  |  |  | 230,366 |
Pursuant to the agreement that was entered into between the Company and TTP (Note 19), after the second closing and conversion of CB, the Company held 51.00% of TTP’s equity interest on as-converted basis. As of December 31, 2020 and 2021, TTP had issued 142,196,089 and 142,196,089 preferred shares, respectively, to certain shareholders (including 80,340,268 shares held by one subsidiary of the Company and eliminated in consolidated financial statements), which could be converted into ordinary shares or redeemed by such shareholders upon the occurrence of certain events that are not solely within the control of TTP. Therefore, these preferred shares were accounted for as convertible redeemable noncontrolling interests.

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