SEGMENTS (Summary of Segment Operating Results) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)
Segments reporting
Number of reportable segments | segment			3
Land sales	$ 44,128	$ 45,423	$ 147,168	$ 138,937
Builder price participation	4,483	6,680	15,631	20,285
Minimum rents	44,910	37,814	128,255	109,997
Other land revenues	2,595	4,617	8,387	11,055
Other rental and property revenues	3,538	7,438	11,335	20,729
Total revenues	240,806	203,442	752,623	567,695
Tenant recoveries	11,657	10,706	33,108	31,074
Condominium rights and unit sales	115,407	78,992	362,613	200,362
Hospitality revenues	14,088	11,772	46,126	35,256
Cost of sales - land	21,432	19,674	66,128	67,806
Other property operating costs	16,535	16,680	47,513	54,459
Rental property real estate taxes	7,033	6,908	21,110	19,676
Rental property maintenance costs	3,332	3,094	9,217	8,738
Hospitality costs	12,662	8,767	37,379	26,738
Provision for (recovery of) doubtful accounts	1,940	1,007	4,629	3,082
Demolition costs	256	1,024	1,218	2,637
Provision for impairment	35,734		35,734
Development-related marketing costs	4,716	7,639	15,586	19,476
Depreciation and amortization	23,322	24,998	71,246	71,577
Other (income) expense, net	(432)	659	(9,858)	(1,204)
Interest income	(196)	(109)	(900)	(516)
Equity in earnings from Real Estate and Other Affiliates	(13,493)	(295)	(35,700)	(3,164)
Gain on sale of 80 South Street Assemblage	(70)		(140,549)
REP EBT	34,498	55,190	354,521	139,178
Operating Segments
Segments reporting
REP EBT	34,498	55,190	354,521	139,178
Operating Segments | Master Planned Communities
Segments reporting
Land sales	44,128	45,423	147,168	138,937
Builder price participation	4,483	6,680	15,631	20,285
Minimum rents	95	171	376	601
Other land revenues	2,585	4,612	8,357	11,038
Other rental and property revenues	13	23	33	30
Total revenues	51,304	56,909	171,565	170,891
Cost of sales - land	21,432	19,674	66,128	67,806
Land sales operations	6,797	7,293	19,603	24,593
Land sales real estate and business taxes	2,419	3,056	7,013	7,702
Depreciation and amortization	72	89	236	279
Interest income	(5)	(14)	(26)	(45)
Interest expense	(5,248)	(4,210)	(15,591)	(13,656)
Equity in earnings from Real Estate and Other Affiliates	(13,699)		(22,573)
Total expenses	11,768	25,888	54,790	86,679
REP EBT	39,536	31,021	116,775	84,212
Operating Segments | Operating Assets
Segments reporting
Minimum rents	44,736	37,565	127,663	108,574
Other rental and property revenues	3,471	7,400	10,974	20,645
Total revenues	73,947	67,422	217,852	195,426
Tenant recoveries	11,652	10,685	33,089	30,951
Hospitality revenues	14,088	11,772	46,126	35,256
Other property operating costs	15,611	15,659	43,559	51,495
Rental property real estate taxes	6,406	6,447	19,257	17,956
Rental property maintenance costs	3,247	2,968	8,893	8,380
Hospitality costs	12,662	8,767	37,379	26,738
Provision for (recovery of) doubtful accounts	1,940	975	4,566	3,050
Demolition costs	16	798	494	2,411
Provision for impairment	35,734		35,734
Development-related marketing costs	1,950	2,367	5,038	7,381
Depreciation and amortization	20,732	22,936	64,546	64,585
Other (income) expense, net	(13)		(3,126)
Interest income	(3)	(10)	(19)	(29)
Interest expense	9,772	8,002	29,041	22,124
Equity in earnings from Real Estate and Other Affiliates	209	(289)	(2,617)	(1,333)
Total expenses	108,263	68,620	242,745	202,758
REP EBT	(34,316)	(1,198)	(24,893)	(7,332)
Operating Segments | Strategic Developments
Segments reporting
Minimum rents	79	78	216	822
Other land revenues	10	5	30	17
Other rental and property revenues	54	29	328	68
Total revenues	115,555	79,111	363,206	201,378
Tenant recoveries	5	7	19	109
Condominium rights and unit sales	115,407	78,992	362,613	200,362
Condominium rights and unit cost of sales	83,218	47,573	237,759	126,747
Other property operating costs	924	1,021	3,954	2,964
Rental property real estate taxes	627	461	1,853	1,720
Rental property maintenance costs	85	126	324	358
Provision for (recovery of) doubtful accounts		32	63	32
Demolition costs	240	226	724	226
Development-related marketing costs	2,766	5,272	10,548	12,095
Depreciation and amortization	659	528	1,978	2,145
Other (income) expense, net	(298)	435	(542)	101
Interest income	(140)	(21)	(271)	(188)
Interest expense	(1,731)	(1,903)	(4,764)	(5,289)
Equity in earnings from Real Estate and Other Affiliates	(3)	(6)	(10,510)	(1,831)
Gain on sale of 80 South Street Assemblage	(70)		(140,549)
Total expenses	86,277	53,744	100,567	139,080
REP EBT	$ 29,278	$ 25,367	$ 262,639	$ 62,298