SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Amount of straight line rent receivables reclassified	$ 31,500	$ 22,200
Adjustment to depreciation due to change in estimated useful life	81,878	82,275	$ 50,683
Gain recognized on the sale of Redlands Promenade	139,432	29,073	2,373
MUDs receivables, net of allowances	900	900
Notes receivable, net	155	1,664
Deferred leasing costs, accumulated amortization	14,100	10,800
Service Life
Adjustment to depreciation due to change in estimated useful life	$ 1,000	$ 17,100	$ 10,800
Impact on diluted EPS resulting from depreciation adjustment	$ 0.02	$ 0.40	$ 0.27
Minimum | Master Planned Communities
Estimated useful life of MPC assets	20 years
Maximum | Master Planned Communities
Estimated useful life of MPC assets	40 years
Redlands Promenade
Gain recognized on the sale of Redlands Promenade			$ 2,400
South Street Seaport
Gain on insurance recoveries, recognized in other income	$ 6,200	$ 300	$ 27,000
Summerlin
Notes receivable, net	20,200
Note receivable from homebuilder, interest rate (as a percent)		39.00%
TPC Summerlin and TPC Las Vegas
Gain from participation interest in golf courses	$ 2,800	$ 500