REAL ESTATE (Schedule of Assets and Liabilities Related to Real Estate Held for Sale) (Details) - Held-for-sale - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets related to real estate held for sale
Total real estate, at cost	$ 0	$ 33,575
Accumulated depreciation and amortization	0	(5,558)
Real estate held for sale, net	0	28,017
Other assets	0	1,786
Total assets related to real estate held for sale	0	29,803
Liabilities related to real estate held for sale
Notes payable, net	0	21,648
Other liabilities	0	50
Total liabilities related to real estate held for sale	$ 0	$ 21,698

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