Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details)

v3.19.1
Stock-Based Compensation - Disclosure of Share-based Compensation Arrangements by Share-based Payment Award (Details) - Restricted Shares [Member]
3 Months Ended
Mar. 31, 2019
shares
Common Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding and unvested at beginning 929,347
Granted
Vested (262,656)
Forfeited (10,120)
Outstanding and unvested at ending 656,571
Preferred Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding and unvested at beginning 44,800
Granted 44,000
Vested (44,800)
Forfeited
Outstanding and unvested at ending 44,000