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Parent Company Only Condensed Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2021
Condensed Balance Sheet Statements, Captions [Line Items] |
Condensed Balance Sheet | Condensed balance sheets (in thousands)
|  |  |  |  |  |  |  |  |  |  |  |  | As of December 31, |
|  |  |  |  |  |  |  |  |  |  |  |  | 2020 |  |  | 2021 |  |  | 2021 |
|  |  |  |  |  |  |  |  |  |  |  |  | RMB |  |  | RMB |  |  | US$ |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  |  |  |  |  |  |  |  |  |  |  | 551,705 |  |  |  | 24,500 |  |  |  | 3,845 |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 700,052 |  |  |  | 109,853 |
Amounts due from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 8,496 |  |  |  | 1,333 |
Amounts due from related parties |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000 |  |  |  | — |  |  |  | — |
Other current assets |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 1,723 |  |  |  | 271 |
Total current assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 560,705 |  |  |  | 734,771 |  |  |  | 115,302 |
TOTAL ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  | 560,705 |  |  |  | 734,771 |  |  |  | 115,302 |
LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS’ (DEFICIT)/EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other payables |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 4,133 |  |  |  | 649 |
Amounts due to subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,390 |  |  |  | 2,569 |  |  |  | 403 |
Warrant liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 108,160 |  |  |  | — |  |  |  | — |
Total current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 128,550 |  |  |  | 6,702 |  |  |  | 1,052 |
Non-current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share of losses in excess of investments in subsidiaries and amounts due from subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  | 662,264 |  |  |  | — |  |  |  | — |
Total non-current liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 662,264 |  |  |  | — |  |  |  | — |
TOTAL LIABILITIES |  |  |  |  |  |  |  |  |  |  |  |  |  | 790,814 |  |  |  | 6,702 |  |  |  | 1,052 |
Mezzanine equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,174,910 |  |  |  | — |  |  |  | — |
Shareholders’ (deficit)/equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ordinary shares (US$0.000002 par value per share; 24,819,646,300 and nil shares authorized as of December 31, 2020 and 2021, respectively; 64,908,700 and nil shares issued and outstanding as of December 31, 2020 and 2021, respectively) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  | — |  |  |  | — |
Class A ordinary shares (US$0.000002 par value per share; nil and 20,000,000,000 shares authorized as of December 31, 2020 and 2021, respectively; nil and 299,797,728 shares issued as of December 31, 2020 and 2021, nil and 270,054,584 shares outstanding as of December 31, 2020 and 2021, respectively) |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 3 |  |  |  | 1 |
Class B ordinary shares (US$0.000002 par value per share; nil and 2,500,000,000 shares authorized as of December 31, 2020 and 2021, respectively; nil and 54,543,800 shares issued and outstanding as of December 31, 2020 and 2021, respectively) |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | 1 |  |  |  | — |
Additional paid-in capital |  |  |  |  |  |  |  |  |  |  |  |  |  | 117,298 |  |  |  | 13,685,062 |  |  |  | 2,147,485 |
Treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |  | — |  |  |  | (7,042 | ) |  |  | (1,105 | )
Accumulated deficit |  |  |  |  |  |  |  |  |  |  |  |  |  | (5,499,357 | ) |  |  | (12,765,713 | ) |  |  | (2,003,219 | )
Accumulated other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  | (22,961 | ) |  |  | (184,242 | ) |  |  | (28,912 | )
TOTAL SHAREHOLDERS’ (DEFICIT)/EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  | (5,405,019 | ) |  |  | 728,069 |  |  |  | 114,250 |
TOTAL LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDER’S (DEFICIT)/EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |  | 560,705 |  |  |  | 734,771 |  |  |  | 115,302 |
Condensed Statements of Comprehensive Loss | Condensed statements of comprehensive loss (in thousands)
|  | For the years ended December 31, |
|  | 2019 |  |  | 2020 |  |  | 2021 |  |  | 2021 |
|  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |
Operating expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative expenses |  |  | 375 |  |  |  | (142,186 | ) |  |  | (271,436 | ) |  |  | (42,594 | )
Total operating expenses |  |  | 375 |  |  |  | (142,186 | ) |  |  | (271,436 | ) |  |  | (42,594 | )
Income/(loss) from operations |  |  | 375 |  |  |  | (142,186 | ) |  |  | (271,436 | ) |  |  | (42,594 | )
Interest income |  |  | 24,423 |  |  |  | 7,699 |  |  |  | 8,611 |  |  |  | 1,351 |
Interest expenses |  |  | (39,477 | ) |  |  | (21,334 | ) |  |  | — |  |  |  | — |
Other expenses |  |  | — |  |  |  | (29,141 | ) |  |  | — |  |  |  | — |
Changes in fair value of warrant liabilities |  |  | (100,672 | ) |  |  | 11,450 |  |  |  | (44,457 | ) |  |  | (6,976 | )
Share of losses in subsidiarie s |  |  | (1,758,032 | ) |  |  | (3,003,402 | ) |  |  | (6,121,777 | ) |  |  | (960,641 | )
Net loss |  |  | (1,873,383 | ) |  |  | (3,176,914 | ) |  |  | (6,429,059 | ) |  |  | (1,008,860 | )
Accretions of redeemable convertible preferred shares |  |  | (74,558 | ) |  |  | (320,301 | ) |  |  | (288,380 | ) |  |  | (45,253 | )
Deemed dividend |  |  | (46,168 | ) |  |  | — |  |  |  | — |  |  |  | — |
Net loss attributable to ordinary shareholders |  |  | (1,994,109 | ) |  |  | (3,497,215 | ) |  |  | (6,717,439 | ) |  |  | (1,054,113 | )
Other comprehensive income/(loss), net of tax of nil: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustments |  |  | 30,409 |  |  |  | (53,370 | ) |  |  | (161,281 | ) |  |  | (25,308 | )
Comprehensive loss |  |  | (1,842,974 | ) |  |  | (3,230,284 | ) |  |  | (6,590,340 | ) |  |  | (1,034,168 | )
Accretions of redeemable convertible preferred shares |  |  | (74,558 | ) |  |  | (320,301 | ) |  |  | (288,380 | ) |  |  | (45,253 | )
Deemed dividend |  |  | (46,168 | ) |  |  | — |  |  |  | — |  |  |  | — |
Comprehensive loss attributable to ordinary shareholders |  |  | (1,963,700 | ) |  |  | (3,550,585 | ) |  |  | (6,878,720 | ) |  |  | (1,079,421 | )
Condensed Statements of Cash Flow | Condensed statements of cash flows (in thousands)
|  | For the years ended December 31, |
|  | 2019 |  |  | 2020 |  |  | 2021 |  |  | 2021 |
|  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |
Net cash provided by/(used in) operating activities |  |  | 24,414 |  |  |  | 7,564 |  |  |  | (4,066 | ) |  |  | (638 | )
Net cash used in investing activities |  |  | (1,663,826 | ) |  |  | (1,957,689 | ) |  |  | (7,713,202 | ) |  |  | (1,210,370 | )
Net cash generated from financing activities |  |  | 1,340,157 |  |  |  | 2,281,673 |  |  |  | 7,215,688 |  |  |  | 1,132,299 |
Effect of exchange rate changes on cash and cash equivalents and restricted cash |  |  | 20,632 |  |  |  | (41,844 | ) |  |  | (25,625 | ) |  |  | (4,021 | )
Net (decrease)/increase in cash and cash equivalents |  |  | (278,623 | ) |  |  | 289,704 |  |  |  | (527,205 | ) |  |  | (82,730 | )
Cash and cash equivalents at beginning of the year |  |  | 540,624 |  |  |  | 262,001 |  |  |  | 551,705 |  |  |  | 86,575 |
Cash and cash equivalents at end of the year |  |  | 262,001 |  |  |  | 551,705 |  |  |  | 24,500 |  |  |  | 3,845 |

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