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Earnings Per Share - Schedule of Antidilutive Securities (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Employee stock options and restricted stock awards excluded from computation of earnings per share amount 748,002 1,846,026 784,752 3,673,618