OPERATING PROPERTIES, REAL ESTATE HELD FOR SALE AND OTHER REAL ESTATE OWNED (Details 1) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Project projects	Dec. 31, 2017 USD ($) Project projects
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 64,641	$ 122,072
Additions:
Capital costs additions	16,389	3,805
REO acquired through purchase		19,630
Transfer	0	0
Reductions:
Cost of Properties Sold	(4,754)	(12,736)
Impairment	(581)	(744)
Depreciation and amortization	(684)	(448)
Transfers, net		(89,105)
Real Estate Held for Sale, Ending Balances	$ 75,011	64,641
Number of Projects, Reductions:
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	16
Operating Properties [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 20,484	88,734
Additions:
Capital costs additions	14,066	1,673
Real estate acquired		0
REO acquired through purchase		19,630
Transfer	0	0
Reductions:
Cost of Properties Sold	0	0
Impairment	0	0
Depreciation and amortization	(684)	(448)
Transfers, net		(89,105)
Real Estate Held for Sale, Ending Balances	$ 33,866	$ 20,484
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	1	2
Number of Projects, Additions:
Number of projects acquired | projects		0
Capital costs additions | Project	0	0
Number of projects transferred | Project	0	0
Capital costs additions | Project		1
Number of Projects, Reductions:
Cost of Properties Sold | Project	0	0
Impairment | Project	0	0
Transfers, net | Project	0	0
Transfers, net | Project		(2)
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	1	1
Held For Sale [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 5,853	$ 17,837
Additions:
Capital costs additions	243	1,009
Real estate acquired		0
REO acquired through purchase		0
Transfer	6,657	(641)
Reductions:
Cost of Properties Sold	(4,754)	(12,152)
Impairment	(581)	(200)
Depreciation and amortization	0	0
Transfers, net		0
Real Estate Held for Sale, Ending Balances	$ 7,418	$ 5,853
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	2	10
Number of Projects, Additions:
Number of projects acquired | projects		0
Capital costs additions | Project	0	0
Number of projects transferred | Project	8	(2)
Capital costs additions | Project		0
Number of Projects, Reductions:
Cost of Properties Sold | Project	(2)	(6)
Impairment | Project	0	0
Transfers, net | Project	0	0
Transfers, net | Project		0
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	8	2
Other Real Estate Owned [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 38,304	$ 15,501
Additions:
Capital costs additions	2,080	1,123
Real estate acquired		18,105
REO acquired through purchase		0
Transfer	(6,657)	641
Reductions:
Cost of Properties Sold	0	(584)
Impairment	0	(544)
Depreciation and amortization	0	0
Transfers, net		0
Real Estate Held for Sale, Ending Balances	$ 33,727	$ 38,304
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	15	7
Number of Projects, Additions:
Number of projects acquired | projects		7
Capital costs additions | Project	0	0
Number of projects transferred | Project	(8)	4
Capital costs additions | Project		0
Number of Projects, Reductions:
Cost of Properties Sold | Project	0	(4)
Impairment | Project	0	0
Transfers, net | Project	0	0
Transfers, net | Project		0
Mortgage Loans on Real Estate Number of Projects (in projects) | Project	7	15
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	$ 64,641
Reductions:
Real Estate Held for Sale, Ending Balances		$ 64,641
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | projects	18
Number of Projects, Reductions:
Mortgage Loans on Real Estate Number of Projects (in projects) | projects		18
Continuing and Discontinued Operations [Member] | Operating Properties [Member]
Movement in Real Estate Acquired Through Foreclosure [Roll Forward]
Real Estate Held for Sale, Beginning Balances	$ 20,484
Reductions:
Real Estate Held for Sale, Ending Balances		$ 20,484
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | projects	1
Number of Projects, Reductions:
Mortgage Loans on Real Estate Number of Projects (in projects) | projects		1
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	$ 5,853
Reductions:
Real Estate Held for Sale, Ending Balances		$ 5,853
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | projects	2
Number of Projects, Reductions:
Mortgage Loans on Real Estate Number of Projects (in projects) | projects		2
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	$ 38,304
Reductions:
Real Estate Held for Sale, Ending Balances		$ 38,304
Movement in Mortgage Loans On Real Estate Number Of Projects [Roll Forward]
Mortgage Loans on Real Estate Number of Projects (in projects) | projects	15
Number of Projects, Reductions:
Mortgage Loans on Real Estate Number of Projects (in projects) | projects		15