Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lessee Lease Description [Line Items]
Operating lease, option to extend			Our leases have remaining lease terms of 1 year to 11 years. These leases generally contain renewal options for periods ranging from two to five years. Because the Company is not reasonably certain to exercise these renewal options, the options are not considered in determining the lease term, and associated potential option payments are excluded from lease payments.
Lessee, Operating Lease, Existence of Option to Extend [true false]			true
Operating lease payments to related parties	$ 0.6	$ 0.6	$ 1.7	$ 1.8
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease, Remaining lease term			1 year
Operating lease, renewal term	2 years		2 years
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease, Remaining lease term			11 years
Operating lease, renewal term	5 years		5 years