Impairments of Long-lived Assets - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges	$ 374,800,000	$ 5,080,000	$ 2,551,000	$ 377,325,000
Ceased covered airport parking lease term			7 years
Remaining lease period of released land lease			28 years
Future land lease payment ceased			4,200,000
Bulk sale reduced selling prices				20.00%
Estimated fair value of impaired real estate	91,400,000			91,400,000
Minimum
Impaired Long-Lived Assets Held and Used [Line Items]
Estimated pricing and projected price appreciation over time		0.00%
Maximum
Impaired Long-Lived Assets Held and Used [Line Items]
Estimated pricing and projected price appreciation over time		5.00%
Undiscounted Cash Flow
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying value of long-lived assets	466,200,000			466,200,000
Homes and Homesites
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charges				$ 2,500,000