XML 96 R85.htm IDEA: XBRL DOCUMENT v3.21.1
Common Stock Incentive Plan - Summary (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Common Stock Incentive Plan    
Severance charge   $ 3,500
2012 Plan    
Common Stock Incentive Plan    
Plan term from the date of adoption 10 years  
General and administrative expense    
Common Stock Incentive Plan    
Share-based compensation costs recognized $ 3,700 5,500
Accelerated share-based compensation costs   1,800
Maximum | 2012 Plan    
Common Stock Incentive Plan    
Authorized shares 3,985,734  
Cash    
Common Stock Incentive Plan    
Severance charge   1,600
Share-based compensation    
Common Stock Incentive Plan    
Severance charge   1,800
Professional fees    
Common Stock Incentive Plan    
Severance charge   $ 58