XML 55 R40.htm IDEA: XBRL DOCUMENT v3.21.2
Restructuring and Severance Charges - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Apr. 16, 2021
Feb. 04, 2021
Sep. 30, 2019
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2021
Dec. 31, 2019
Restructuring Charges              
Percentage reduction in force     60.00%        
Expensed           $ 0 $ 5,600
Accelerated vesting expense         $ 700    
Chief Medical Officer              
Restructuring Charges              
Accelerated vesting expense   $ 700          
Chief Financial Officer              
Restructuring Charges              
Accelerated vesting expense $ 900            
Extension of exercise period 24 months            
Accelerated cost       $ 400      
Accrued severance compensation           $ 900