Leases - Additional Information (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Impairment loss on operating lease right-of-use assets	$ 0.3	$ 5.5
Total fixed payment obligations for operating lease not yet commenced	38.7	38.7
Deferred current lease payments	$ 12.1	$ 12.1
Deferred current lease payments, deferral term		1 year
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	10 years	10 years
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	15 years	15 years
Operating lease not yet commenced term	15 years	15 years