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Earnings Per Share - Schedule of Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Weighted-average Shares Outstanding (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Restricted Stock Units Outstanding        
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]        
Potentially dilutive common stock equivalents excluded from calculation of diluted weighted-average shares outstanding 1,421,473 90,460 1,191,286 83,787