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Earnings (Loss) Per Share - Schedule of Anti-Dilutive Securities (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Anti-Dilutive Unvested Shares and Options      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Anti-dilutive unvested shares and options 610 51 8