General form of registration statement for all companies including face-amount certificate companies

Stock Option Plan and Stock-Based Compensation - Weighted-Average Assumptions (Details)

v3.21.2
Stock Option Plan and Stock-Based Compensation - Weighted-Average Assumptions (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]        
Expected volatility 60.00% 60.00% 60.00% 60.00%
Risk-free interest rate, minimum 0.90% 0.40% 0.40% 2.00%
Risk-free interest rate, maximum 1.00% 0.80% 0.50% 3.00%
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected term (in years) 5 years 8 months 15 days 6 years 25 days 6 years 14 days 5 years 3 months 10 days