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Income Taxes - Schedule of Overall Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Income tax benefit based on the federal statutory rate 21.00% 21.00% 34.00%
State income taxes, net of federal benefit (as a percent) (1.50%) 1.40% 9.40%
Nondeductible expenses (as a percent) (3.50%) (4.70%) (1.20%)
Change in valuation allowance (as a percent) (4.50%) (14.20%) (130.00%)
Stock-based compensation (as a percent) (12.00%) (2.90%) 86.50%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent 0.00% 0.00% 7.50%
Overall effective income tax rate (0.50%) 0.60% 6.20%