Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.20.2
Subsequent Events - Additional Information (Details)
¥ in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Nov. 10, 2020
USD ($)
Oct. 09, 2020
USD ($)
Oct. 09, 2020
CNY (¥)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Subsequent Event [Line Items]              
Cash paid for income taxes         $ 76 $ 352  
Effective income tax settlement         $ 95    
Scenario Forecast              
Subsequent Event [Line Items]              
Effective income tax settlement       $ 1,981      
China Tax Authority              
Subsequent Event [Line Items]              
FIN48 payable             $ 1,400
Subsequent Event              
Subsequent Event [Line Items]              
Cash paid for income taxes $ 95            
Subsequent Event | China Tax Authority              
Subsequent Event [Line Items]              
Cash paid for income taxes   $ 95 ¥ 644,498