OPERATING PROPERTIES AND REAL ESTATE HELD FOR DEVELOPMENT OR SALE (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Project projects	Dec. 31, 2016 USD ($) Project
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 122,072	$ 152,867
Additions:
Capital costs additions	3,805	8,724
Basis adjustment for TIF receivable and liability forgiveness		(4,493)
REO acquired through purchase	19,630
Reductions:	0
Reductions:
Cost of Properties Sold	(12,736)	(31,183)
Impairment	(744)	0
Depreciation and amortization	(448)	(3,843)
Transfers, net	(89,105)	0
Real Estate Held for Sale, Ending Balances	$ 64,641	122,072
Number of Projects, Reductions:
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	18
Operating Properties [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 0	116,156
Additions:
Capital costs additions	1,673	8,577
Real Estate Acquired	0
Basis adjustment for TIF receivable and liability forgiveness		0
REO acquired through purchase	19,630
Reductions:	0
Reductions:
Cost of Properties Sold	0	0
Impairment	0
Depreciation and amortization	(448)	(3,843)
Transfers, net	(89,105)	(32,156)
Real Estate Held for Sale, Ending Balances	$ 20,484	$ 0
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	2	4
Number of Projects, Additions:
Number of Projects Acquired | projects	0
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project		0
Number of Projects Transferred | Project	0
Capital costs additions | Project	1
Number of Projects, Reductions:
Cost of Properties Sold | Project	0	0
Impairment | Project	0
Transfers, net | Project	0	0
Transfers, net | Project	(2)	(2)
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	1	2
Held For Development [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 0	$ 3,664
Additions:
Capital costs additions	0	45
Real Estate Acquired	0
Basis adjustment for TIF receivable and liability forgiveness		0
REO acquired through purchase	0
Reductions:	0
Reductions:
Cost of Properties Sold	0	0
Impairment	0
Depreciation and amortization	0	0
Transfers, net	0	(3,709)
Real Estate Held for Sale, Ending Balances	$ 0	$ 0
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	0	1
Number of Projects, Additions:
Number of Projects Acquired | projects	0
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project		0
Capital costs additions | Project	0
Number of Projects, Reductions:
Cost of Properties Sold | Project	0	0
Impairment | Project	0
Transfers, net | Project	0	0
Transfers, net | Project	0	(1)
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	0	0
Held For Sale [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 17,837	$ 5,346
Additions:
Capital costs additions	1,009	(55)
Real Estate Acquired	0
Basis adjustment for TIF receivable and liability forgiveness		4,493
REO acquired through purchase	0
Reductions:	(641)
Reductions:
Cost of Properties Sold	(12,152)	(30,903)
Impairment	(200)
Depreciation and amortization	0	0
Transfers, net	0	47,942
Real Estate Held for Sale, Ending Balances	$ 5,853	$ 17,837
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	10	8
Number of Projects, Additions:
Number of Projects Acquired | projects	0
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project		0
Number of Projects Transferred | Project	(2)
Capital costs additions | Project	0
Number of Projects, Reductions:
Cost of Properties Sold | Project	(6)	(10)
Impairment | Project	0
Transfers, net | Project	0	0
Transfers, net | Project	0	(12)
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	2	10
Other Real Estate Owned [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 15,501	$ 27,701
Additions:
Capital costs additions	1,123	157
Real Estate Acquired	18,105
Basis adjustment for TIF receivable and liability forgiveness		0
REO acquired through purchase	0
Reductions:	641
Reductions:
Cost of Properties Sold	(584)	(280)
Impairment	(544)
Depreciation and amortization	0	0
Transfers, net	0	(12,077)
Real Estate Held for Sale, Ending Balances	$ 38,304	$ 15,501
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	7	14
Number of Projects, Additions:
Number of Projects Acquired | projects	7
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project		0
Number of Projects Transferred | Project	4
Capital costs additions | Project	0
Number of Projects, Reductions:
Cost of Properties Sold | Project	(4)	(1)
Impairment | Project	0
Transfers, net | Project	0	0
Transfers, net | Project	0	(6)
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	15	7
Lakeside JV [Member]
Additions:
Real Estate Acquired	$ 4,062
Lakeside JV [Member] | Other Real Estate Owned [Member]
Additions:
Real Estate Acquired	$ 4,062
Number of Projects, Additions:
Number of Projects Acquired | projects	1
New Mexico VIEs [Member]
Additions:
Real Estate Acquired	$ 18,105
Continuing and Discontinued Operations [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 122,072
Reductions:
Real Estate Held for Sale, Ending Balances		$ 122,072
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	19
Number of Projects, Reductions:
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project		19
Continuing and Discontinued Operations [Member] | Operating Properties [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 88,734
Reductions:
Real Estate Held for Sale, Ending Balances		$ 88,734
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	2
Number of Projects, Reductions:
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project		2
Continuing and Discontinued Operations [Member] | Held For Sale [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 17,837
Reductions:
Real Estate Held for Sale, Ending Balances		$ 17,837
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	10
Number of Projects, Reductions:
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project		10
Continuing and Discontinued Operations [Member] | Other Real Estate Owned [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 15,501
Reductions:
Real Estate Held for Sale, Ending Balances		$ 15,501
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	7
Number of Projects, Reductions:
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project		7