Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Other Benefit Plans (Summary of Stock-Based Compensation) (Details)

v3.21.2
Stock-Based Compensation and Other Benefit Plans (Summary of Stock-Based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation $ 25 $ (248) $ 2,098 $ (2,097)
Equity Award [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation 327 322 767 527
Liability Award [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Total stock-based compensation $ (302) $ (570) $ 1,331 $ (2,624)