XML 97 R51.htm IDEA: XBRL DOCUMENT v3.21.1
Share-Based Payments - Schedule of Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Options and Warrants Outstanding, Number of Shares Beginning Balance 5,306,176  
Granted, Number of Shares 2,898,663  
Exercised, Number of Shares (297,000)  
Cancelled, Number of Shares (210,781)  
Options and Warrants Outstanding, Number of Shares Ending Balance 7,697,058 5,306,176
Shares, Vested 2,148,119  
Shares, Non-vested 5,548,939  
Weighted Average Exercise Price Per Share, Outstanding Beginning Balance $ 4.62  
Weighted Average Exercise Price Per Share, Granted 10.90  
Weighted Average Exercise Price Per Share, Exercised 4.09  
Weighted Average Exercise Price Per Share, Cancelled 4.91  
Weighted Average Exercise Price Per Share, Outstanding Ending Balance 6.99 $ 4.62
Weighted Average Exercise Price Per Share, Vested 4.49  
Weighted Average Exercise Price Per Share, Non-vested $ 7.96  
Weighted Average Remaining Contractual Life, Outstanding 8 years 6 months 8 years 11 months 26 days
Weighted Average Remaining Contractual Life, Vested 7 years 10 months 24 days  
Weighted Average Remaining Contractual Life, Non-vested 8 years 8 months 26 days  
Aggregate Intrinsic Value, Outstanding Value $ 266,050 $ 3,214
Aggregate Intrinsic Value, Vested Value 79,625  
Aggregate Intrinsic Value, Non-vested Value $ 186,425