XML 83 R72.htm IDEA: XBRL DOCUMENT v3.20.2
Stock Plans and Stock-Based Compensation - Schedule of Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2020
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock options outstanding, Beginning Balance | shares 723,383
Stock options outstanding, Exercised | shares (275,309)
Stock options outstanding, Forfeited | shares (10,930)
Stock options outstanding, Ending Balance | shares 437,144
Weighted average exercise price, Beginning Balance | $ / shares $ 26.56
Weighted average exercise price, Exercised | $ / shares 24.57
Weighted average exercise price, Forfeited | $ / shares 27.98
Weighted average exercise price, Ending Balance | $ / shares $ 27.78