Leases - Schedule of Components of Operating Lease Income from Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating Leases Lease Income [Abstract]
Fixed lease payments	$ 506,046	$ 223,882	$ 983,331	$ 412,737
Variable lease payments	47,671	23,790	102,481	47,132
Rental revenue	$ 553,717	$ 247,672	$ 1,085,812	$ 459,869