XML 47 R38.htm IDEA: XBRL DOCUMENT v3.21.2
Summary of Significant Accounting Policies - Summary of Contract Liabilities (Details)
¥ in Thousands, $ in Thousands
Jun. 30, 2021
CNY (¥)
Jun. 30, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
Contract with Customer, Asset and Liability [Abstract]      
Contract liabilities ¥ 70,166 $ 10,867 ¥ 71,141