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v3.25.1

Summary of Significant Accounting Policies - Additional Information (Detail) ¥ in Thousands, $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Jan. 31, 2017 USD ($) | Dec. 31, 2024 CNY (¥) Customer | Dec. 31, 2024 USD ($) Customer | Dec. 31, 2023 CNY (¥) Customer | Dec. 31, 2023 USD ($) Customer | Dec. 31, 2022 CNY (¥) | Dec. 31, 2024 USD ($) | Jun. 30, 2022 CNY (¥) | Dec. 31, 2020 | Dec. 31, 2017
Convenience translation rate | 7.2993 |  |  | 7.2993 |  |  |  |  | 7.2993 |  |  |
Equity method investment realized gain loss | ¥ 247 | $ 34 |  | ¥ 93 | $ 13 | ¥ 361 |  | ¥ 294 |  |  |  |
Breakage Income |  |  |  | 7,712 | 1,057 | 10,924 |  | 26,392 |  |  |  |
Increase in deferred revenue |  |  |  | 12,642 | 1,732 | 17,096 |  | (4,762) |  |  |  |
Deferred revenue recognized |  |  |  | 61,907 | 8,481 | 56,514 |  | 66,198 |  |  |  |
Impairment loss on contract assets |  |  |  | 61,856 | 8,474 | 58,790 |  |  |  |  |  |
Remaining performance obligation | 574,042 |  |  | 574,042 |  | 577,266 |  |  | $ 78,643 |  |  |
Employee benefit expenses |  |  |  | 53,878 | $ 7,381 | ¥ 70,230 |  | ¥ 88,293 |  |  |  |
Assets held at major financial institutions | 522,162 |  |  | ¥ 522,162 |  |  |  |  | 71,536 |  |  |
Foreign currency exchange rate, Appreciation depreciation percentage |  |  |  | 2.80% | 2.80% | 2.90% | 2.90% | 8.20% |  |  |  |
Convertible note receivable | 0 |  |  | ¥ 0 |  | ¥ 5,320 |  |  | 0 |  |  |
Gain On Investments |  |  |  | 5,320 | $ 729 | 215 |  | ¥ 105 |  |  |  |
Accrued Liabilities and Other Liabilities | 89,498 |  |  | 89,498 |  | 104,935 |  |  | 12,262 |  |  |
Increase Decrease In Research And Development Expenses |  |  |  | 2,821 | 386 | 663 |  | 2,337 |  |  |  |
Net Income (Loss) |  |  |  | (346,626) | (47,489) | (653,689) |  | (971,233) |  |  |  |
Net cash generated from (used in) operating activities |  |  |  | (92,300) | (12,640) | (255,783) |  | (456,808) |  |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal | 247 | $ 34 |  | 93 | 13 | 361 |  | 294 |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  | 35,127 | $ 4,812 | 0 |  | 0 |  |  |  |
Impairment, Long-Lived Asset, Held-for-Use |  |  |  |  |  | 0 |  | ¥ 0 |  |  |  |
Government Assistance [Member] |  |  |  |  |  |  |  |  |  |  |  |
Accrued Liabilities and Other Liabilities | ¥ 229 |  |  | ¥ 229 |  | 1,090 |  |  | $ 31 |  |  |
Convertible Note Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |
Convertible note receivable |  |  |  |  |  |  |  |  |  | ¥ 5,000 |  |
Convertible note receivable interest rate |  |  |  |  |  |  |  |  |  | 4.00% |  |
Contract with Customer Asset [Member] |  |  |  |  |  |  |  |  |  |  |  |
Increase in contract assets |  |  |  |  |  | ¥ (8,893) | $ (1,218) |  |  |  |  |
EaSuMed Holding Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment ownership percentage |  |  | 20.29% |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments | $ |  |  | $ 363 |  |  |  |  |  |  |  |  |
Supplier Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, Percentage |  |  |  | 62.00% | 62.00% | 65.00% | 65.00% | 50.00% |  |  |  |
Geographic Concentration Risk [Member] | Non PRC [Member] |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, Percentage |  |  |  | 100.00% | 100.00% |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Value added tax rate |  |  |  |  |  |  |  |  |  |  |  | 13.00%
Lease term | 6 years |  |  | 6 years |  |  |  |  | 6 years |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Value added tax rate |  |  |  |  |  |  |  |  |  |  | 6.00% |
Lease term | 3 months |  |  | 3 months |  |  |  |  | 3 months |  |  |
Accounts Receivable [Member] | Contract with Customer Asset [Member] |  |  |  |  |  |  |  |  |  |  |  |
Increase in contract assets |  |  |  |  |  | ¥ 5,827 | $ 798 |  |  |  |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |
Number of customers | Customer |  |  |  | 0 | 0 | 0 | 0 |  |  |  |  |
Concentration risk, Percentage |  |  |  | 10.00% | 10.00% | 10.00% | 10.00% |  |  |  |  |
Long-aged contract assets [Member] | Contract with Customer Asset [Member] |  |  |  |  |  |  |  |  |  |  |  |
Increase in contract assets |  |  |  |  |  | ¥ 3,066 | $ 420 |  |  |  |  |

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