Quarterly report pursuant to Section 13 or 15(d)

Per Share Data - (Narrative) (Details)

v3.8.0.1
Per Share Data - (Narrative) (Details) - shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Options and warrant    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share (in shares) 28,415,341 38,670,087
Restricted shares    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share (in shares) 4,249,645 3,112,719