Investments in Real Estate - Schedule of Investments in Real Estate, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Real Estate [Abstract]
Building and building improvements	$ 23,302,061	$ 20,950,147
Land and land improvements	6,506,128	5,639,678
Furniture, fixtures and equipment	439,981	377,645
Right of use asset - operating leases	114,535	114,011
Right of use asset - financing leases	56,008	56,008
Total	30,418,713	27,137,489
Accumulated depreciation and amortization	(1,549,499)	(810,621)
Investments in real estate, net	$ 28,869,214	$ 26,326,868