Leases - Additional Information (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2018 ft²	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Leases [Abstract]
Area of real estate property | ft²	220,000
Lessee operating lease term of option to extend	10 years
Operating lease, existence of option to extend	true
Lease, commencement date	Jan. 20, 2020
Lease, expiration year	2035
Weighted average incremental borrowing rate		5.57%		5.57%
Weighted average remaining lease term		14 years 1 month 6 days		14 years 1 month 6 days
Payments for operating leases		$ 4.5	$ 2.3	$ 6.9	$ 4.6
Operating lease expense		$ 4.7	$ 2.1	$ 8.6	$ 4.2