XML 111 R96.htm IDEA: XBRL DOCUMENT v3.20.4
Stock-Based Compensation - Schedule of Unvested Restricted Stock Awards (Details) - Restricted Awards - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unvested balance 1,122,085    
Granted 996,037 833,448 396,705
Forfeited (32,257)    
Vested (524,450)    
Unvested balance 1,561,415 1,122,085  
Unvested balance, Weighted Average Fair Value at Grant Date $ 16.09    
Granted, Weighted Average Fair Value at Grant Date 10.39 $ 11.62 $ 14.02
Forfeited, Weighted Average Fair Value at Grant Date 11.18    
Vested, Weighted Average Fair Value at Grant Date 16.43    
Unvested balance, Weighted Average Fair Value at Grant Date $ 12.33 $ 16.09  
Unvested balance, Aggregate Intrinsic Value [1] $ 18,315    
[1] The aggregate intrinsic value is calculated as the market value of our common stock as of December 31, 2020. The market value as of December 31, 2020 was $11.73 per share, which was the closing price of our common stock reported for transactions effected on the NASDAQ Global Select Market on December 31, 2020, the final trading day of 2020.