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Accounting for Stock-Based Compensation - Schedule of Share-based Compensation, Restricted Stock, Activity (Details) - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Beginning Balance, Unvested Shares 4,555,735 3,857,402 3,308,907
Granted, Shares 2,929,250 2,205,500 1,989,000
Vested, Shares (2,312,328) (1,123,329) (1,160,667)
Forfeited, Shares (177,343) (383,838) (279,838)
Ending Balance, Unvested Shares 4,995,314 4,555,735 3,857,402
Beginning of Period, Weighted Average Grant Date Fair Value $ 4.84 $ 5.47 $ 7.00
Granted, Weighted Average Grant Date Fair Value 8.16 4.90 4.94
Vested, Weighted Average Grant Date Fair Value 4.68 5.84 8.89
Forfeited, Weighted Average Grant Date Fair Value 6.33 8.58 5.60
End of Period, Weighted Average Grant Date Fair Value $ 6.30 $ 4.84 $ 5.47