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Income/(Loss) per Common Share - Narrative (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Warrants outstanding (in shares) 3,040,540 3,040,540  
Number of securities called by warrants (in shares) 152,027 152,027 152,027
Minimum price per share to exercise for first half of warrants (in dollars per share) $ 556.40 $ 556.40  
Term of warrants 7 years    
Stock Compensation Plan      
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 1,559,502 687 1,716,928
Employee Stock Option      
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Antidilutive securities excluded from computation of earnings per share (in shares) 2,284,796 348,625 2,301,046