Other Assets and Other Liabilities - Summary of Components of Other Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Assets [Abstract]
Real estate intangibles, net	$ 248,590	$ 292,658
Receivables	59,869	45,799
Prepaid expenses	17,965	10,746
Straight-line rent receivable	13,562	10,337
Pre-acquisition costs	9,925	15,361
Deferred leasing costs, net	9,208	7,621
Deferred financing costs, net	8,910	5,822
Other	18,720	22,601
Total	$ 386,749	$ 410,945