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Prepayments And Other Receivables - Summary of Prepayments And Other Receivables (Detail) ¥ in Thousands, $ in Thousands | Sep. 30, 2020 CNY (¥) | Sep. 30, 2020 USD ($) | Dec. 31, 2019 CNY (¥)
--- | --- | --- | ---
Prepaid Expense, Current [Abstract] |  |  |
—Prepayments to CRO vendors | ¥ 72,285 | $ 10,646 | ¥ 78,740
—Prepayments for stock repurchase program (Note 11) | 34,051 | 5,015 |
—Prepayments for other services | 1,722 | 254 | 880
Receivables due from employees (Note (i)) | 0 | 0 | 16,201
Loans to an affiliate (Note 21) | 52,000 | 7,659 |
Value-added tax recoverable | 25,330 | 3,731 | 12,517
Rental deposits | 994 | 146 | 546
Interest receivables | 0 | 0 | 764
Others | 33,457 | 4,928 | 26,388
Total | ¥ 219,839 | $ 32,379 | ¥ 136,036

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