Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Narrative (Details)

v3.19.2
Share-Based Compensation - Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2019
USD ($)
plan
Share-based Payment Arrangement [Abstract]  
Number of active share based compensation plans | plan 2
Unrecognized compensation expense related to unvested portion of stock options | $ $ 13.5
Weighted average period of recognition of unrecognized compensation expense 2 years 6 months