Leases- Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) ft² Lease	Mar. 31, 2020 USD ($)
Lessee Lease Description [Line Items]
Lessee, operating lease, option to extend	options to extend certain of the leases up to 10.0 years
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Operating lease renewal term	10 years
Operating lease termination period	3 years
Number of operating lease terminate | Lease	2
Letter of credit	$ 2.1
Operating lease expense	3.1	$ 1.1
Operating lease variable lease expense	0.7	0.5
Cash paid for amounts included in measurement of lease liabilities, net of tenant improvement allowances received	0.5	0.8
Cash received for tenant improvement allowances	$ 1.2	$ 0.3
Number of square feet | ft²	27,000
Lessee, operating lease, lease not yet commenced description	Rent obligations commence six months after lease commencement and the lease expires 120 months thereafter, subject to an early termination option after the seventh year and an option to twice extend the lease for five years. This lease will be assessed for classification and a lease liability and corresponding ROU asset will be recorded upon lease commencement. Future non-cancellable undiscounted lease payments, exclusive of operating and maintenance costs, total
Rent obligations, commencement term	6 months
Lease not yet commenced, expiration term thereafter	120 months
Lease not yet commenced, termination option description	subject to an early termination option after the seventh year
Lease not yet commenced, option to extend description	option to twice extend the lease for five years
Lease not yet commenced, option to extend term	5 years
Operating lease, lease liability upon lease commencement	$ 7.0
Lease not yet commenced landlord agreed to fund for improvements	$ 1.2
Minimum
Lessee Lease Description [Line Items]
Operating lease remaining lease term	1 year 1 month 6 days
Maximum
Lessee Lease Description [Line Items]
Operating lease remaining lease term	12 years 4 months 24 days