Commitments and Contingencies - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Right-of-use asset	$ 400,000		$ 600,000
Current Headquarters
Lessee, Lease, Description [Line Items]
Minimum monthly rental expense	$ 4,000
Discount rate (as a percent)	12.00%
Operating lease cost	$ 100,000	$ 100,000
Remaining lease term	1 year
Right-of-use asset	$ 400,000
Operating lease liability	500,000
Remaining lease payments for remainder of fiscal year	200,000
Future Headquarters
Lessee, Lease, Description [Line Items]
Right-of-use asset	0
Operating lease liability	0
Building | Current Headquarters
Lessee, Lease, Description [Line Items]
Minimum monthly rental expense	$ 24,100
Annual rent increase (as a percent)	3.00%
Building | Future Headquarters
Lessee, Lease, Description [Line Items]
Minimum monthly rental expense	$ 3,800,000
Annual rent increase (as a percent)	3.00%