Leases - Schedule of Components of Lease Costs (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Operating lease cost, primarily classified within "General and administrative"	$ 198,991	$ 152,536
Interest expense	(656)	(952)
Amortization expense	17,814	17,406
Total finance lease costs	$ 17,158	$ 16,454