SEGMENTS (Reconciliation of Segment Revenue to Consolidated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues	$ 258,736	$ 242,264	$ 799,137	$ 756,461
Master Planned Communities | Operating Segments
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues	64,929	52,762	211,711	175,403
Operating Assets | Operating Segments
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues	79,533	73,947	243,498	217,852
Strategic Developments | Operating Segments
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues	$ 114,274	$ 115,555	$ 343,928	$ 363,206