Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock Option Activity (Details)

v3.21.2
Stock-Based Compensation - Summary of Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Number of Shares  
Outstanding beginning balance (in shares) | shares 4,200,000
Granted (in shares) | shares 0
Exercised (in shares) | shares (3,162,000)
Forfeited (in shares) | shares 0
Expired (in shares) | shares (76,000)
Outstanding ending balance (in shares) | shares 962,000
Exercisable ending balance (in shares) | shares 962,000
Weighted Average Exercise Price  
Outstanding beginning balance (in dollars per share) | $ / shares $ 4.82
Granted (in dollars per share) | $ / shares 0
Exercised (in dollars per share) | $ / shares 3.40
Forfeited (in dollars per share) | $ / shares 0
Expired (in dollars per share) | $ / shares 14.00
Outstanding ending balance (in dollars per share) | $ / shares 8.76
Exercisable ending balance (in dollars per share) | $ / shares $ 8.76