Leases - Additional Information (Details) $ in Millions	1 Months Ended		3 Months Ended		12 Months Ended
	Oct. 31, 2019 ft²	Jul. 31, 2015 ft²	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 item	Dec. 31, 2020
Lessee Lease Description
Operating lease costs | $			$ 0.8	$ 0.8
Cash paid for amounts included in measurement of lease liabilities | $			$ 0.9	$ 0.8
Operating lease weighted average remaining term			3 years 9 months 18 days			4 years 1 month 6 days
Operating lease Weighted average discount rate			8.10%			8.10%
Finance lease weighted average remaining term			2 years 3 months 18 days			2 years 4 months 24 days
Finance lease Weighted average discount rate			5.80%			5.80%
Corporate Headquarters Lease
Lessee Lease Description
Area of office space leased | ft²		47,789
Lease Expiration Date		Sep. 01, 2024
Option to extend lease		true
Term of optional lease renewal		5 years
New Camarillo Lease
Lessee Lease Description
Area of office space leased | ft²	25,017
Lease Expiration Date	May 01, 2027
Option to extend lease	true
Term of optional lease renewal	5 years
Vehicle Lease
Lessee Lease Description
Number of vehicles leased | item					50
Term of leases					36 months