Fair Value Measurements Fair Value Measurements - Fair Value Assumptions Using Black-Scholes-Merton Option Pricing Model (Details) - Valuation Technique, Option Pricing Model	Mar. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Time until expiration (years)	4 years
Stock price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities, measurement inputs	2.85
Exercise price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities, measurement inputs	7.63
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities, measurement inputs	0.700
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities, measurement inputs	0.007
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liabilities, measurement inputs	0.00