Leases - Schedule of Other Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Apr. 01, 2018
Leases [Abstract]
Operating cash flows from operating leases	$ 24,914
Operating cash flows from finance leases	100
Financing cash flows from finance leases	866	$ 456
Cash paid for amounts included in the measurement of lease liabilities	25,880
Right-of-use assets obtained in exchange for new finance lease liabilities	864
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5,833
Weighted-average remaining lease term—finance leases	3 years 4 months 24 days
Weighted-average remaining lease term—operating leases	5 years 3 months 18 days
Weighted-average discount rate—finance leases	5.80%
Weighted-average discount rate—operating leases	6.50%