XML 25 R53.htm IDEA: XBRL DOCUMENT v3.20.1
Equity Incentive Plans - Narrative (Details) - $ / shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock units granted (in shares) 286,155  
Restricted stock units vested (in shares) 130,920  
Restricted stock unites forfeited (in shares) 94,155  
Weighted-average grant date fair value of options (in USD per share)   $ 38.65