XML 48 R38.htm IDEA: XBRL DOCUMENT v3.21.2
Business Combination - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jul. 27, 2021
Sep. 15, 2020
shares
Sep. 15, 2020
shares
Mar. 31, 2021
USD ($)
Jun. 30, 2021
USD ($)
Sep. 30, 2021
USD ($)
ValueRight
Dec. 31, 2020
USD ($)
Business Acquisition [Line Items]              
Impairment charges | $       $ 500 $ 700   $ 2,300
Reverse stock split   1-for-7 1-for-7        
Goodwill | $           $ 19,462 $ 20,089
Expiration period termination notice 60 days            
resTORbio              
Business Acquisition [Line Items]              
Contractual Contingent Value Right | ValueRight           1  
Reverse stock split exchange ratio   0.1240          
Percentage of outstanding capital stock   75.00% 75.00%        
Number of shares of surviving stock options | shares   81,370          
Unvested restricted stock units outstanding | shares   91,309 91,309        
Number of common stock shares sold | shares   54,553          
Goodwill | $           $ 19,462  
resTORbio | Common Stock              
Business Acquisition [Line Items]              
Percentage of outstanding capital stock   25.00% 25.00%