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Earnings (Loss) Per Share - Narratives (Details) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Restricted Stock Units    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Anti-dilutive securities excluded from calculation of earnings per share (in shares) 0 400,000
Stock Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Anti-dilutive securities excluded from calculation of earnings per share (in shares) 0 3,000,000.0