Other Assets and Other Liabilities - Summary of Components of Other Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Other Assets [Abstract]
Real estate intangibles, net	$ 690,887	$ 292,658
Receivables	87,118	45,799
Prepaid expenses	39,464	10,746
Pre-acquisition costs	24,484	15,361
Deferred leasing costs, net	22,006	7,621
Straight-line rent receivable	19,429	10,337
Deferred financing costs, net	13,847	5,822
Other	28,780	22,601
Total	$ 926,015	$ 410,945