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v3.20.4

Operations and Reorganization - Liquidity (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Apr. 30, 2020 shares | Oct. 31, 2018 shares | Apr. 30, 2018 shares | Dec. 31, 2020 CNY (¥) shares | Dec. 31, 2020 USD ($) shares | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥) shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2020 USD ($)
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Net losses |  |  |  | ¥ 3,054,017 | $ 468,049 | ¥ 1,303,570 |  | ¥ 565,021 |  |
Net cash (used in)/provided by operating activities |  |  |  | 753,100 | 115,418 | 194,551 |  | 737,286 |  |
Accumulated deficit |  |  |  | 7,175,300 |  | 4,145,606 |  | 2,842,690 |  | $ 1,099,668
Net proceeds from the offering, after deducting offerings expenses |  |  |  | 2,817,458 | 431,794 | 1,647,711 |  | 4,952,606 |  |
Convertible senior notes (the "2027 Notes") due 2027 [Member] |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Net proceeds from the offering, after deducting commissions and offerings expenses |  |  |  | ¥ 5,594,800 | $ 786,100 |  |  |  |  |
Class Z Ordinary Shares |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Ordinary shares, issued (in shares) | 17,310,696 | 25,063,451 | 42,000,000 |  |  |  |  |  |  |
Proceeds from issuance initial public offering |  |  |  |  |  |  |  | 2,170,800 | $ 317,200 |
Class Z Ordinary Shares | Convertible senior notes (the "2027 Notes") due 2027 [Member] |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Ordinary shares, issued (in shares) |  |  |  | 17,310,696 | 17,310,696 |  |  |  |  |
Net proceeds from the offering, after deducting offerings expenses |  |  |  | ¥ 2,817,500 | $ 399,400 |  |  |  |  |
Notes And Primary Offering [Member] | Convertible senior notes (the "2027 Notes") due 2027 [Member] |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Proceeds From Issuance Initial Public Offering And Notes Net Of Offering Costs |  |  |  |  |  | ¥ 5,003,800 | $ 733,900 |  |  |
IPO [Member] |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Proceeds from issuance initial public offering |  |  |  |  |  |  |  | ¥ 2,781,800 | $ 443,300 |
IPO [Member] | Class Z Ordinary Shares |  |  |  |  |  |  |  |  |  |
Issuance of preferred shares |  |  |  |  |  |  |  |  |  |
Ordinary shares, issued (in shares) |  |  | 42,000,000 |  |  |  |  | 25,063,451 | 25,063,451 |

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