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Stockholder's Equity - Valuation Assumptions (Details) - Stock Options
6 Months Ended
Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate 0.92%
Expected volatility 44.98%
Expected life (in years) 4 years 3 months 10 days
Dividend yield 0.00%