XML 91 R68.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Stock-based Compensation - Schedule of Restricted Stock Activity (Details) - Restricted stock
12 Months Ended
Dec. 31, 2019
$ / shares
shares
NUMBER OF SHARES  
RSAs outstanding, beginning (in shares) | shares 572,706
Granted, number of shares (in shares) | shares 519,167
Vested (in shares) | shares (214,276)
Cancelled (in shares) | shares (123,182)
RSAs outstanding, ending (in shares) | shares 754,415
WEIGHTED AVERAGE FAIR VALUE PER SHARE  
RSAs outstanding, weighted average exercise price, beginning (in dollars per share) | $ / shares $ 48.18
Granted, weighted average exercise price (in dollars per share) | $ / shares 40.07
Vested, Weighted average exercise price (in dollars per share) | $ / shares 45.76
Cancelled, weighted average exercise price (in dollars per share) | $ / shares 49.64
RSAs outstanding, weighted average exercise price, ending (in dollars per share) | $ / shares $ 43.07