v3.26.1
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, 2025
CNY (¥)
Customer
Dec. 31, 2025
USD ($)
Customer
Dec. 31, 2024
CNY (¥)
Customer
Dec. 31, 2024
USD ($)
Customer
Dec. 31, 2023
CNY (¥)
Dec. 31, 2028
CNY (¥)
Dec. 31, 2027
CNY (¥)
Dec. 31, 2026
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2020
Dec. 31, 2017
Accounting Policies [Line Items]                            
Convenience translation rate       6.9931               6.9931    
Equity method investment realized gain loss ¥ 247 $ 34   ¥ 0   ¥ 93   ¥ 361            
Breakage Income       7,899 $ 1,130 7,712   10,924            
Increase in deferred revenue       10,076 1,441 12,642   17,096            
Deferred revenue recognized       61,049 8,730 61,907   56,514            
Impairment loss on contract assets       65,651 9,388 61,856                
Remaining performance obligation 574,042     575,653   574,042           $ 82,318    
Allocated transaction prices       415,804 59,459                  
Employee benefit expenses       47,018 $ 6,583 ¥ 53,878   ¥ 70,230            
Assets held at major financial institutions       ¥ 481,088               68,795    
Foreign currency exchange rate, Appreciation depreciation percentage       4.20% 4.20% 2.80% 2.80% 2.90%            
Accrued Liabilities and Other Liabilities 89,498     ¥ 80,861   ¥ 89,498           $ 11,563    
Increase Decrease In Research And Development Expenses       1,771 $ 253 2,821   ¥ 663            
Net Income (Loss)       (55,300) (7,916) (346,626)   (653,689)            
Net cash generated from (used in) operating activities       (28,400) (4,068) (92,261)   (255,783)            
Equity Method Investment, Realized Gain (Loss) on Disposal 247 $ 34   0   93   361            
Impairment of Long-Lived Assets to be Disposed of       ¥ 0 $ 0 35,127   ¥ 0            
Interest on long term borrowings       3.10%               3.10%    
Japan, Yen                            
Accounting Policies [Line Items]                            
Foreign currency exchange rate, Appreciation depreciation percentage       3.10% 3.10%                  
Subsequent Event [Member]                            
Accounting Policies [Line Items]                            
Principal Amount Of Borrowings                 ¥ 1,500 ¥ 200 ¥ 200      
Government Assistance [Member]                            
Accounting Policies [Line Items]                            
Accrued Liabilities and Other Liabilities ¥ 229     ¥ 0   229                
Contract with Customer Asset [Member]                            
Accounting Policies [Line Items]                            
Increase in contract assets           ¥ (1,554) $ 223              
EaSuMed Holding Ltd [Member]                            
Accounting Policies [Line Items]                            
Equity method investment ownership percentage     20.29%                      
Payments to acquire equity method investments | $     $ 363                      
Supplier Concentration Risk [Member]                            
Accounting Policies [Line Items]                            
Concentration risk, Percentage       46.00% 46.00% 62.00% 62.00% 65.00%            
Geographic Concentration Risk [Member] | Non PRC [Member]                            
Accounting Policies [Line Items]                            
Concentration risk, Percentage       100.00% 100.00%                  
Maximum [Member]                            
Accounting Policies [Line Items]                            
Value added tax rate                           13.00%
Lease term       5 years               5 years    
Minimum [Member]                            
Accounting Policies [Line Items]                            
Value added tax rate                         6.00%  
Lease term       1 year               1 year    
Accounts Receivable [Member] | Contract with Customer Asset [Member]                            
Accounting Policies [Line Items]                            
Increase in contract assets           ¥ 2,241 $ 320              
Accounts Receivable [Member] | Customer Concentration Risk [Member]                            
Accounting Policies [Line Items]                            
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]                            
Accounting Policies [Line Items]                            
Increase in contract assets           ¥ 3,795 $ 543