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Fee and Other Income - Schedule of Fee and Other Income from Continuing Operations (Detail) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Income Statement [Abstract]    
Management, development, financing and other fee income $ 10,800,000 $ 11,700,000
Ancillary and other property income 5,700,000 6,100,000
Lease termination fees 500,000 500,000
Other miscellaneous 100,000 100,000
Total fee and other income $ 17,067,000 $ 18,395,000