SEGMENTS (Details 4)-K (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues	$ 207,053	$ 119,228	$ 209,631	$ 98,653	$ 133,953	$ 99,615	$ 145,759	$ 90,091	$ 634,565	$ 469,418	$ 376,886
Operating Segments [Member]
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues									634,565	469,418	376,886
Master Planned Communities [Member] | Operating Segments [Member]
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues									363,295	274,770	207,039
Operating Assets [Member] | Operating Segments [Member]
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues									186,290	160,586	165,091
Strategic Developments [Member] | Operating Segments [Member]
Reconciliation of Segment Basis Revenues to GAAP Revenues
Total revenues									$ 84,980	$ 34,062	$ 4,756