Leases - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating Lease, Weighted Average Remaining Lease Term	5 years 4 months 24 days
Lessee, Operating Lease, Option to Extend	5.0
Operating Lease Liability Not Yet Commenced	$ 4.2
Maximum [Member]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	7 years
Operating Lease, Weighted Average Remaining Lease Term	12 years 8 months 12 days
Minimum [Member]
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract	5 years 4 months 24 days
Operating Lease, Weighted Average Remaining Lease Term	1 month 6 days