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Earnings (Loss) Per Share - Additional Information (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Earnings Per Share [Abstract]          
Antidilutive securities excluded from earnings (loss) per share, options to purchase shares, RSAs, RSUs, and contingently issuable shares (in shares) 2,100,000 1,200,000 2,100,000 8,000,000.0  
Common stock outstanding (in shares) 115,566,482   115,566,482   116,123,361