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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, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Income Statement [Abstract]        
Management and other fee income $ 8,400 $ 7,900 $ 16,500 $ 16,100
Ancillary and other property income 4,700 5,900 8,800 12,100
Lease termination fees 1,400 2,000 1,600 3,300
Other 100 200 300 400
Total fee and other income $ 14,567 $ 15,990 $ 27,230 $ 31,874