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v3.20.1

Parent only financial information - Condensed Statements of Results of Operations (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 CNY (¥)
Operating expenses: |  |  |  |
General and administrative expenses | $ (74,754) | ¥ (520,421) | ¥ (145,277) | ¥ (156,329)
Total operating expenses | (185,843) | (1,293,799) | (407,253) | (386,452)
Loss from operations | (77,100) | (536,757) | 69,375 | (4,864)
Other income (expenses): |  |  |  |
Interest income, net | (1,252) | (8,719) | (1,118) | (13,034)
(Loss) income before income tax | (72,770) | (506,621) | 108,459 | 3,015
Income tax expense | 541 | 3,766 | 4,433 | 2,366
Net income (loss) | (73,311) | (510,387) | 104,026 | 649
Accretion of Redeemable Convertible Preferred Shares | (16,707) | (116,308) | (248,186) | (228,468)
Deemed dividend to preferred shareholder | 92,243 | 642,174 |  |
Net loss attributable to ordinary shareholders | $ (182,261) | (1,268,869) | (144,160) | (227,819)
Reportable Legal Entities | Parent Company |  |  |  |
Operating expenses: |  |  |  |
General and administrative expenses |  | (881) | (72) | (2,722)
Total operating expenses |  | (881) | (72) | (2,722)
Loss from operations |  | (881) | (72) | (2,722)
Equity (loss) income of subsidiaries and the VIE and VIE's subsidiaries |  | 147,511 | 22,921 | 54,226
Other income (expenses): |  |  |  |
Interest income, net |  | (2) | (2) | 243
(Loss) income before income tax |  | 146,628 | 22,847 | 51,747
Income tax expense |  | 0 |  |
Net income (loss) |  | 146,628 | 22,847 | 51,747
Accretion of Redeemable Convertible Preferred Shares |  | (116,308) | (248,186) | (228,468)
Deemed dividend to preferred shareholder |  | 642,174 |  |
Net loss attributable to ordinary shareholders |  | ¥ (611,854) | ¥ (225,339) | ¥ (176,721)

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