Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Summary of Number of RSUs Granted and Weighted-average Grant Date Fair Value of RSUs (Details)

v3.19.1
Share-Based Compensation - Summary of Number of RSUs Granted and Weighted-average Grant Date Fair Value of RSUs (Details) - Restricted Share Units (RSUs) - $ / shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Shares, Unvested, Beginning balance 36,924  
Number of Shares, Granted 0 0
Number of Shares, Unvested, Ending balance 36,924 0
Weighted Average grant date fair value per share, Unvested, Beginning balance $ 13.00  
Weighted Average grant date fair value per share, Unvested, Ending balance $ 13.00