SEGMENTS (Summary of Segment Operating Results) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)	Mar. 01, 2017	Jul. 20, 2016
Segments reporting
Number of reportable segments | segment			3
Land sales	$ 69,144	$ 61,098	$ 122,625	$ 103,040
Builder price participation	4,480	6,501	9,141	11,148
Minimum rents	45,073	42,036	91,399	83,345
Other land revenues	4,463	4,122	15,045	8,170
Other rental and property revenues	5,923	4,593	11,380	7,797
Total revenues	308,639	273,514	540,401	514,195
Tenant recoveries	11,642	10,923	23,041	21,451
Condominium rights and unit sales	148,211	125,112	228,356	247,206
Hospitality revenues	19,703	19,129	39,414	32,038
Cost of sales - land	33,376	29,008	59,245	44,696
Other property operating costs	20,291	15,236	38,799	30,978
Rental property real estate taxes	6,550	7,329	14,087	14,077
Rental property maintenance costs	3,608	2,753	6,636	5,885
Hospitality operating costs	14,164	14,242	28,009	24,717
Provision for doubtful accounts	745	(352)	1,280	2,689
Demolition costs	63	490	128	962
Development-related marketing costs	4,716	6,339	8,921	10,870
Depreciation and amortization	34,770	24,952	60,294	47,924
Other income, net	(223)	(9,067)	(33,125)	(149,905)
Interest income	(785)	(435)	(1,407)	(704)
Equity in earnings from Real Estate and Other Affiliates	(9,834)	(20,275)	(18,354)	(22,207)
Gain on sale of 80 South Street Assemblage			(32,215)	(140,479)
Loss on redemption of senior notes due 2021			46,410
Operating Segments [Member]
Segments reporting
REP segment EBT	85,990	106,170	186,943	320,023
Operating Segments [Member] | Master Planned Communities [Member]
Segments reporting
Land sales	69,144	61,098	122,625	103,040
Builder price participation	4,480	6,501	9,141	11,148
Minimum rents		142	(8)	282
Other land revenues	4,452	4,112	15,024	8,150
Other rental and property revenues		17		20
Total revenues	78,076	71,870	146,782	122,640
Cost of sales - land	33,376	29,008	59,245	44,696
Land sales operations	7,307	9,169	16,701	19,778
Provision for doubtful accounts			2
Depreciation and amortization	79	81	171	164
Interest income	(1)	(5)	(9)	(21)
Interest expense	(5,989)	(5,004)	(11,538)	(10,343)
Equity in earnings from Real Estate and Other Affiliates	(9,792)	(8,874)	(15,072)	(8,874)
Total expenses	24,980	24,375	49,500	45,400
REP segment EBT	53,096	47,495	97,282	77,240
Operating Segments [Member] | Operating Assets [Member]
Segments reporting
Minimum rents	45,023	41,811	90,985	82,929
Other rental and property revenues	5,616	4,416	10,800	7,499
Total revenues	81,878	76,270	163,965	143,903
Tenant recoveries	11,536	10,914	22,766	21,437
Hospitality revenues	19,703	19,129	39,414	32,038
Other property operating costs	18,045	13,795	33,568	27,913
Rental property real estate taxes	6,032	6,709	12,877	12,851
Rental property maintenance costs	3,480	2,645	6,313	5,646
Hospitality operating costs	14,164	14,242	28,009	24,717
Provision for doubtful accounts	745	(353)	1,275	2,626
Demolition costs	63		128
Development-related marketing costs	832	187	1,250	443
Depreciation and amortization	32,244	22,613	55,033	43,814
Other income, net	(162)	(2,750)	16	(3,113)
Interest income	(3)	(8)	(3)	(16)
Interest expense	15,543	12,744	30,067	24,081
Equity in earnings from Real Estate and Other Affiliates	(37)	(899)	(3,422)	(2,826)
Total expenses	90,946	68,925	165,111	136,136
REP segment EBT	(9,068)	7,345	(1,146)	7,767
Operating Segments [Member] | Strategic Developments [Member]
Segments reporting
Minimum rents	50	83	422	134
Other land revenues	11	10	21	20
Other rental and property revenues	307	160	580	278
Total revenues	148,685	125,374	229,654	247,652
Tenant recoveries	106	9	275	14
Condominium rights and unit sales	148,211	125,112	228,356	247,206
Condominium rights and unit cost of sales	106,195	79,726	166,678	154,541
Other property operating costs	2,246	1,441	5,231	3,065
Rental property real estate taxes	518	620	1,210	1,226
Rental property maintenance costs	128	108	323	239
Provision for doubtful accounts		1	3	63
Demolition costs		490		962
Development-related marketing costs	3,884	6,152	7,671	10,427
Depreciation and amortization	491	660	1,159	1,319
Other income, net			(15)	(244)
Interest income	(29)	(125)	(94)	(131)
Interest expense	(6,705)	(4,527)	(11,244)	(7,845)
Equity in earnings from Real Estate and Other Affiliates	(5)	(10,502)	140	(10,507)
Gain on sale of 80 South Street Assemblage			(32,215)	(140,479)
Total expenses	106,723	74,044	138,847	12,636
REP segment EBT	$ 41,962	$ 51,330	$ 90,807	$ 235,016
Millennium Six Pines Apartments [Member]
Segments reporting
Voting interest acquired (as a percent)						18.57%
Las Vegas 51s LLC [Member]
Segments reporting
Voting interest acquired (as a percent)	50.00%		50.00%		50.00%