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Earnings (Loss) Per Share - Schedule of Common Shares Excluded from Diluted Earnings (Loss) per Share (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Restricted stock awards and PSUs        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive stock-based compensation awards (in shares) 9,825 4,180 10,106 7,284