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Warrants (Details) - $ / shares
10 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2018
Warrants [Abstract]    
Expected volatility 65.70% 58.18%
Risk-free interest rate, minimum 2.82% 2.82%
Risk-free interest rate, maximum 2.822% 2.822%
Expected term from grant date (in years) 2 years 6 months 2 years 5 months 5 days
Dividend rate
Fair value, minimum $ 5.73 $ 4.60
Fair value, maximum $ 10.34 $ 9.48