INCOME TAXES - Schedule of Reported Provision for Income Taxes and the U.S. Federal Statutory Rate (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision at the statutory rate	35.00%	35.00%	35.00%
Non-taxable REIT income	(21.72%)	(28.22%)	(36.51%)
State and local taxes	1.76%	0.18%	(1.16%)
Change in valuation allowance	0.85%	0.67%	0.01%
Change in federal tax rate	(0.92%)	0.00%	0.00%
Other	(0.17%)	(0.48%)	(1.59%)
Total provision	14.80%	7.15%	(4.25%)