OPERATING PROPERTIES AND REAL ESTATE HELD FOR DEVELOPMENT OR SALE (Details 1)	12 Months Ended
	Dec. 31, 2016 USD ($) Project	Dec. 31, 2015 USD ($) Project
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 152,867,000	$ 145,372,000
Additions:
Net principal carrying value of loans foreclosed		663,000
Capital costs additions	8,724,000	45,792,000
Basis adjustment for TIF receivable and liability forgiveness	(4,493,000)
REO transferred to Operating Property		0
Reductions:
Cost of Properties Sold	(31,183,000)	(32,763,000)
Impairment	0	(3,676,000)
Depreciation and amortization	(3,843,000)	(2,521,000)
Transfers, net	0	0
Real Estate Held for Sale, Ending Balances	122,072,000	152,867,000
Operating Properties [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	116,156,000	83,481,000
Additions:
Net principal carrying value of loans foreclosed		0
Capital costs additions	8,577,000	21,773,000
Basis adjustment for TIF receivable and liability forgiveness
REO transferred to Operating Property		13,423,000
Reductions:
Cost of Properties Sold	0	0
Impairment		0
Depreciation and amortization	(3,843,000)	(2,521,000)
Transfers, net	(32,156,000)	0
Real Estate Held for Sale, Ending Balances	$ 88,734,000	$ 116,156,000
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	4	3
Number of Projects, Additions:
Net principal carrying value of loans foreclosed | Project		0
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project	0
Reductions : | 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)	0
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	2	4
Held For Development [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 3,664,000	$ 8,205,000
Additions:
Net principal carrying value of loans foreclosed		0
Capital costs additions	45,000	8,882,000
Basis adjustment for TIF receivable and liability forgiveness	0
REO transferred to Operating Property		(13,423,000)
Reductions:
Cost of Properties Sold	0	0
Impairment		0
Depreciation and amortization	0	0
Transfers, net	(3,709,000)	0
Real Estate Held for Sale, Ending Balances	$ 0	$ 3,664,000
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	1	1
Number of Projects, Additions:
Net principal carrying value of loans foreclosed | Project		0
Capital costs additions | Project	0	1
Basis adjustment for TIF receivable and liability forgiveness | Project	0
Reductions : | Project		(1)
Number of Projects, Reductions:
Cost of Properties Sold | Project	0	0
Impairment | Project		0
Transfers, net | Project	0	0
Transfers, net | Project	(1)	0
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	0	1
Held For Sale [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 5,346,000	$ 53,686,000
Additions:
Net principal carrying value of loans foreclosed		663,000
Capital costs additions	(55,000)	15,137,000
Basis adjustment for TIF receivable and liability forgiveness	4,493,000
REO transferred to Operating Property		0
Reductions:
Cost of Properties Sold	(30,903,000)	(32,763,000)
Impairment		(3,676,000)
Depreciation and amortization	0	0
Transfers, net	47,942,000	(27,701,000)
Real Estate Held for Sale, Ending Balances	$ 17,837,000	$ 5,346,000
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	8	29
Number of Projects, Additions:
Net principal carrying value of loans foreclosed | Project		2
Capital costs additions | Project	0	15
Basis adjustment for TIF receivable and liability forgiveness | Project	0
Reductions : | Project		0
Number of Projects, Reductions:
Cost of Properties Sold | Project	(10)	(24)
Impairment | Project		0
Transfers, net | Project	0	0
Transfers, net | Project	(12)	14
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	10	8
Other Real Estate Owned [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 27,701,000	$ 0
Additions:
Net principal carrying value of loans foreclosed		0
Capital costs additions	157,000	0
Basis adjustment for TIF receivable and liability forgiveness	0
REO transferred to Operating Property		0
Reductions:
Cost of Properties Sold	(280,000)	0
Impairment		0
Depreciation and amortization	0	0
Transfers, net	(12,077,000)	27,701,000
Real Estate Held for Sale, Ending Balances	$ 15,501,000	$ 27,701,000
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	14	0
Number of Projects, Additions:
Net principal carrying value of loans foreclosed | Project		0
Capital costs additions | Project	0	0
Basis adjustment for TIF receivable and liability forgiveness | Project	0
Reductions : | Project		0
Number of Projects, Reductions:
Cost of Properties Sold | Project	(1)	0
Impairment | Project		0
Transfers, net | Project	0	0
Transfers, net | Project	(6)	14
Mortgage Loans On Real Estate Number Of Projects (in projects) | Project	7	14