XML 24 R42.htm IDEA: XBRL DOCUMENT v3.20.1
Stock-Based Compensation - Schedule of Restricted Stock Unit Activity and Weighted Average Grant Date Fair Value (Details) - Restricted Stock Units
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Shares  
Non-vested, beginning balance (in shares) | shares 398,318
Granted (in shares) | shares 167,161
Forfeited (in shares) | shares (16,449)
Vested (in shares) | shares (125,399)
Non-vested, ending balance (in shares) | shares 423,631
Weighted-Average Grant Date Fair Value  
Non-vested, beginning balance (in dollars per share) | $ / shares $ 49.53
Granted (in dollars per share) | $ / shares 66.77
Forfeited (in dollars per share) | $ / shares 48.67
Vested (in dollars per share) | $ / shares 39.16
Non-vested, ending balance (in dollars per share) | $ / shares $ 59.44