Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity - Nonvested Stock Activity (Details)

v3.21.2
Stockholder's Equity - Nonvested Stock Activity (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Restricted stock  
Number of shares  
Share grants outstanding, beginning balance | shares 469,631
Granted (in shares) | shares 126,100
Vested or exercised (in shares) | shares (174,921)
Share grants outstanding, ending balance | shares 420,810
Weighted average grant date fair value  
Share grants beginning balance, (in dollars per share) | $ / shares $ 89.69
Granted (in dollars per share) | $ / shares 186.15
Vested or exercised (in dollars per share) | $ / shares 188.48
Share grants ending balance, (in dollars per share) | $ / shares $ 122.25
Options  
Number of shares  
Share grants outstanding, beginning balance | shares 74,235
Granted (in shares) | shares 0
Vested or exercised (in shares) | shares 0
Share grants outstanding, ending balance | shares 74,235
Weighted average grant date fair value  
Share grants outstanding, beginning balance (in dollars per share) | $ / shares $ 42.07
Granted (in dollars per share) | $ / shares 0
Vested or exercised (in dollars per share) | $ / shares 0
Share grants outstanding, ending balance (in dollars per share) | $ / shares $ 42.07