Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 28,227	$ 25,884
Operating cash flows from finance leases	489	575
Financing cash flows from finance leases	628	433
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 29,112	$ 355,981