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v3.22.1

Long-Term Borrowings - Additional Information (Detail) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 CNY (¥) | Oct. 31, 2020 CNY (¥) | Oct. 31, 2020 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Oct. 31, 2020 USD ($) | Oct. 31, 2019 CNY (¥)
Proceeds from issuance of Long term debt |  |  |  | ¥ 0 | $ 0 | ¥ 128,000 |  | ¥ 60,000 |  |
Repayments of long term debt |  |  |  | 87,000 | 13,652 | 35,625 |  | 7,500 |  |
Secured Debt [Member] | Secured Loan Agreements With East West Bank [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  |  | $ 68,000 |
Proceeds from issuance of Long term debt |  | ¥ 68,000 |  |  |  |  |  |  |  |
Debt instrument, Frequency of periodic payment |  | monthly | monthly |  |  |  |  |  |  |
Debt instrument, Payment terms |  | from 2020 to 2022 | from 2020 to 2022 |  |  |  |  |  |  |
Repayments of long term debt | ¥ 34,500 | ¥ 600 |  |  |  |  | $ 5,400 |  |  |
Long term debt, Percentage bearing fixed interest, Percentage rate |  | 4.15% |  |  |  |  |  |  | 4.15% |
Secured Debt [Member] | Secured Loan Agreements With SPD Silicon Valley Bank [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | ¥ 60,000 |  |  |  |  |  |  |  |
Proceeds from issuance of Long term debt |  | ¥ 60,000 | $ 9,200 |  |  |  |  |  |  |
Debt instrument, Frequency of periodic payment |  | monthly | monthly |  |  |  |  |  |  |
Debt instrument, Payment terms |  | from 2020 to 2022 | from 2020 to 2022 |  |  |  |  |  |  |
Repayments of long term debt |  | ¥ 5,000 |  | 30,000 |  |  | $ 4,700 |  |  |
Long term debt, Percentage bearing fixed interest, Percentage rate |  | 4.75% |  |  |  |  |  |  | 4.75% |
Secured RMB Denominated Loan For General Working Capital Purposes [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | ¥ 60,000
Proceeds from issuance of Long term debt |  |  |  |  |  |  |  | ¥ 60,000 |  |
Debt instrument, Frequency of periodic payment |  |  |  |  |  |  |  | monthly |  |
Debt instrument, Payment terms |  |  |  |  |  |  |  | from 2019 to 2021 |  |
Repayments of long term debt |  |  |  | ¥ 22,500 | $ 3,500 | ¥ 30,000 |  |  |  |
Secured RMB Denominated Loan For General Working Capital Purposes [Member] | Secured Debt [Member] | Prime Rate [Member] |  |  |  |  |  |  |  |  |  |
Debt instrument, Basis spread on variable rate |  |  |  |  |  |  |  | 225.00% |  |

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