Derivatives - Schedule of Liabilities Measured and Recognized at Fair Value on a Recurring (Details) - Fair Value, Recurring - Series B Senior Unsecured Convertible Notes - Convertible debt $ in Thousands	Dec. 31, 2019 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability related to Series B Convertible Notes	$ 6,776
Fair Value, Inputs, Level 1
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability related to Series B Convertible Notes	0
Fair Value, Inputs, Level 2
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability related to Series B Convertible Notes	0
Fair Value, Inputs, Level 3
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability related to Series B Convertible Notes	$ 6,776