Nature of Business and Financial Statement Presentation - Schedule of Fee and Other Income from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Management and other fee income	$ 11,400	$ 8,400	$ 19,600	$ 16,500
Ancillary and other property income	4,500	4,700	8,600	8,800
Lease termination fees	300	1,400	1,500	1,600
Other	0	100	0	300
Total fee and other income	$ 16,227	$ 14,567	$ 29,748	$ 27,230