Leases - Summary of Additional Lease Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 10,953
Operating right-of-use assets obtained in exchange for lease obligations	$ 18,497
Weighted-average remaining lease term - operating leases (years)	6 years 4 months 24 days
Weighted-average discount rate - operating leases	5.10%