Other Assets and Other Liabilities - Summary of Components of Other Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Equity securities	$ 1,001,297	$ 599,185
Real estate intangibles, net	650,268	738,259
Straight-line rent receivable	184,718	155,108
Receivables, net	121,905	109,159
Deferred leasing costs, net	52,655	49,533
Derivatives	46,345
Prepaid expenses	42,767	50,092
Deferred financing costs, net	27,262	22,740
Held for sale assets	13,783
Pre-acquisition costs	6,564	241
Other	75,030	74,936
Total	$ 2,222,594	$ 1,799,253