SEGMENTS (Summary of Segment Operating Results) (Details) $ in Thousands		3 Months Ended								12 Months Ended
	Mar. 16, 2017 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segments reporting
Number of reportable segments | segment										3
Land sales										$ 248,595	$ 215,318	$ 187,399
Builder price participation										22,835	21,386	26,846
Minimum rents										183,025	173,268	150,760
Other land revenues										28,166	16,232	14,803
Other rental and property revenues										31,414	16,585	27,080
Total revenues		$ 300,983	$ 258,736	$ 308,639	$ 231,762	$ 278,546	$ 242,265	$ 273,514	$ 240,680	1,100,120	1,035,005	797,088
Tenant recoveries										45,814	44,330	39,542
Condominium rights and unit sales										464,251	485,634	305,284
Hospitality revenues										76,020	62,252	45,374
Cost of sales - land										121,116	95,727	88,065
Other property operating costs										91,729	65,978	72,751
Rental property real estate taxes										29,185	26,847	24,138
Rental property maintenance costs										13,432	12,392	10,712
Hospitality operating costs										56,362	49,359	34,839
Provision for (recovery of) doubtful accounts										2,710	5,664	4,030
Demolition costs										1,923	2,212	3,297
Provision for impairment											35,734
Development-related marketing costs										20,504	22,184	25,466
Depreciation and amortization										132,252	95,864	98,997
Other income, net										(54,615)	(116,268)	(1,829)
Interest income										(4,043)	(1,359)	(586)
Equity in earnings in Real Estate and Other Affiliates										(25,498)	(56,818)	(3,721)
Gain on sale of 80 South Street Assemblage										(51,367)	(140,549)
Loss on redemption of senior notes due 2021	$ 46,400									46,410
Operating Segments
Segments reporting
REP segment EBT										330,728	458,518	202,300
Operating Segments | Master Planned Communities
Segments reporting
Land sales										248,595	215,318	187,399
Builder price participation										22,835	21,386	26,846
Minimum rents										(8)	384	797
Other land revenues										28,124	16,192	14,778
Other rental and property revenues										(3)	24	45
Total revenues										299,543	253,304	229,865
Cost of sales - land										121,116	95,727	88,065
Land sales operations										38,777	42,371	44,907
Provision for (recovery of) doubtful accounts										2
Depreciation and amortization										323	311	640
Other income, net										(3,500)
Interest income										(4)	(59)	(60)
Interest expense										(24,288)	(21,026)	(18,053)
Equity in earnings in Real Estate and Other Affiliates										(23,234)	(43,501)
Total expenses										109,192	73,823	115,499
REP segment EBT										190,351	179,481	114,366
Operating Segments | Operating Assets
Segments reporting
Minimum rents										182,468	172,437	149,064
Other rental and property revenues										23,701	16,170	25,453
Total revenues										327,555	295,165	259,306
Tenant recoveries										45,366	44,306	39,415
Hospitality revenues										76,020	62,252	45,374
Other property operating costs										71,748	60,506	68,078
Rental property real estate taxes										26,523	24,439	21,856
Rental property maintenance costs										12,872	12,033	10,236
Hospitality operating costs										56,362	49,359	34,839
Provision for (recovery of) doubtful accounts										2,710	5,601	3,998
Demolition costs										1,605	194	2,412
Provision for impairment											35,734
Development-related marketing costs										3,346	947	7,934
Depreciation and amortization										122,421	86,313	89,075
Other income, net										315	(4,601)	(524)
Interest income										(22)	(19)	(37)
Interest expense										61,606	50,446	32,968
Equity in earnings in Real Estate and Other Affiliates										(3,267)	(2,802)	(1,883)
Total expenses										356,219	318,150	268,952
REP segment EBT										(28,664)	(22,985)	(9,646)
Operating Segments | Strategic Developments
Segments reporting
Minimum rents										565	447	899
Other land revenues										42	40	25
Other rental and property revenues										7,716	391	1,582
Total revenues										473,022	486,536	307,917
Tenant recoveries										448	24	127
Condominium rights and unit sales										464,251	485,634	305,284
Condominium rights and unit cost of sales										338,361	319,325	191,606
Other property operating costs										19,981	5,472	4,673
Rental property real estate taxes										2,662	2,408	2,282
Rental property maintenance costs										560	359	476
Provision for (recovery of) doubtful accounts										(2)	63	32
Demolition costs										318	2,018	885
Development-related marketing costs										17,158	21,237	17,532
Depreciation and amortization										1,210	2,744	3,240
Other income, net										(108)	(611)	104
Interest income										(187)	(500)	(202)
Interest expense										(25,280)	(16,937)	(8,453)
Equity in earnings in Real Estate and Other Affiliates										550	(10,515)	(1,838)
Gain on sale of 80 South Street Assemblage										(51,242)	(140,549)
Total expenses										303,981	184,514	210,337
REP segment EBT										$ 169,041	$ 302,022	$ 97,580
Las Vegas 51s
Segments reporting
Voting interest acquired (as a percent)		50.00%								50.00%