XML 59 R50.htm IDEA: XBRL DOCUMENT v3.21.1
Share-Based Compensation - Share Based Compensation Allocation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award    
Total share-based compensation expense $ (670) $ 6,235
Research and development    
Share-based Compensation Arrangement by Share-based Payment Award    
Total share-based compensation expense (1,654) 4,562
General and administrative    
Share-based Compensation Arrangement by Share-based Payment Award    
Total share-based compensation expense 984 1,627
Capitalized to property and equipment    
Share-based Compensation Arrangement by Share-based Payment Award    
Total share-based compensation expense $ 0 $ 46