SEGMENTS (Details 5) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Reconciliation of total segment assets to total assets
Total segment assets	$ 2,989,474,000	$ 2,841,952,000	$ 2,784,170,000
Total assets	3,503,042,000	3,399,593,000	3,022,707,000
Master Planned Communities
Reconciliation of total segment assets to total assets
Total segment assets	1,756,625,000	1,780,596,000	1,765,487,000
Operating Assets
Reconciliation of total segment assets to total assets
Total segment assets	944,562,000	871,549,000	812,646,000
Strategic Developments
Reconciliation of total segment assets to total assets
Total segment assets	288,287,000	189,807,000	206,037,000
Additional information
Increase (decrease) in assets	98,500,000
Costs incurred related to Woodlands development projects	60,000,000
Reclassification of land	18,000,000
Collection of pre-sale condominium deposits from One Ala Moana project	19,600,000
Corporate and other
Reconciliation of total segment assets to total assets
Total assets	513,568,000	557,641,000	730,741,000
Real Estate Affiliates
Reconciliation of total segment assets to total assets
Total assets			$ (492,204,000)