Nature of Business and Financial Statement Presentation - Schedule of Fee and Other Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Management and other fee income	$ 8,787	$ 11,465	$ 18,226	$ 19,643
Ancillary and other property income	4,660	4,512	8,993	8,616
Lease termination fees	630	216	808	1,445
Other	31	34	98	44
Total fee and other income	$ 14,108	$ 16,227	$ 28,125	$ 29,748