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Organization and Basis of Presentation - Additional Information (Detail)
¥ / shares in Units, ¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
CNY (¥)
¥ / shares
Dec. 31, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2021
USD ($)
Sep. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Shareholder Voting Rights Trust Agreements Term 10 years        
Variable interest entity and subsidiaries, Consolidated, Assets, Pledged   ¥ 0      
Restricted Cash [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Assets secured for payment of liabilities ¥ 89,704     $ 14,077  
Camelot Employee Scheme Inc [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Percentage of equity interest acquired         100.00%
Beijing Camelot and its Subsidiaries [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Percentage of equity interest acquired         82.15%
Revenue Benchmark [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Consolidated Revenue [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Concentration risk percentage 88.00% 97.00% 98.10%    
Xiaomi Group [Member] | Electronic equipment [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Assets secured for payment of liabilities ¥ 750,000     $ 117,691  
Beijing Yunxiang Zhisheng Technology Co Ltd [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Payment towards loans to related parties     ¥ 10,000    
Loan To Zhuhai King Soft Cloud [Member] | Beijing Kingsoft Cloud Technology Co Ltd [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Payment towards loans to related parties     ¥ 279    
Exclusive Purchase Option Agreement With Zhuhai King Soft Cloud and Nominee Shareholders [Member] | Beijing Kingsoft Cloud Technology Co Ltd [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Equity Method investment per share purchase price | ¥ / shares ¥ 0.001        
Exclusive Consultation and Technical Fees Agreement [Member] | Beijing Kingsoft Cloud Technology Co Ltd [Member] | Zhuhai Kingsoft Cloud [Member]          
Organization Consolidation And Presentation Of Financial Statements [Line Items]          
Related party transaction term of agreement for consultancy services 20 years