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Earnings Per Common Share - Narrative (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Performance- Vested    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share (in shares) 300,000 700,000
Time- Vested    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share (in shares) 0 0