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Earnings Per Share - Additional Information (Details) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares of common stock excluded from computation of earnings per share   0
Stock Options and Restricted Stock Awards    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares of common stock excluded from computation of earnings per share 145,000