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v3.20.4

Investment Accounted for Using the Equity Method and Put Right Liabilities - Additional Information (Detail) ¥ in Thousands, $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2020 CNY (¥) | Sep. 30, 2020 CNY (¥) | Jun. 16, 2019 USD ($)
Disposal of an equity method investment | $ 60,033 | ¥ 407,598 |  |
Management Holdco |  |  |  |
Equity method investment, Ownership percentage | 10.00% |  | 10.00% |
ESOP Holdco |  |  |  |
Equity method investment, Ownership percentage | 5.00% |  | 5.00% |
Domestic Investors |  |  |  |
Equity method investment, Ownership percentage | 40.00% |  | 40.00% |
I-Mab Hong Kong |  |  |  |
Equity method investment, Ownership percentage | 45.00% |  | 45.00% |
I-Mab Hangzhou |  |  |  |
Assets recognized value | $ 105,000 |  |  |
Equity method investment, Ownership percentage | 45.00% |  | 45.00% |
Registered capital of subsidiary |  |  |  | $ 30,000
Proceeds from contributions from affiliates | $ 30,000 |  |  |
Equity method investment, Amount sold | ¥ |  | ¥ 762,997 |  |
Equity method investment fair value | $ 112,039 |  | ¥ 764,352 |
I-Mab Hangzhou | Management Holdco |  |  |  |
Equity method investment, Ownership percentage | 10.00% |  | 10.00% |
Registered capital of subsidiary | $ 3,000 |  |  |
Proceeds from contributions from affiliates | $ 3,000 |  |  |
I-Mab Hangzhou | ESOP Holdco |  |  |  |
Equity method investment, Ownership percentage | 5.00% |  | 5.00% |
Registered capital of subsidiary | $ 1,500 |  |  |
I-Mab Hangzhou | Domestic Investors |  |  |  |
Equity method investment, Ownership percentage | 40.00% |  | 40.00% |
Registered capital of subsidiary | $ 12,000 |  |  |
Proceeds from contributions from affiliates | $ 120,000 |  |  |

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