Fair Value Measurement - Schedule of Fair Value Assumptions (Details)	12 Months Ended
	Dec. 31, 2019 $ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Stock price (in USD per share)	$ 5.51
Exercise price (in USD per share)	$ 0.01
Time until expiration (years)	4 years 6 months 14 days
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability, measurement input	0.530
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability, measurement input	0.0167
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability, measurement input	0