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RELATED PARTIES - Other Agreements (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Related Party Transaction [Line Items]          
Professional Fees $ 1,125 $ 1,155 $ 3,348 $ 3,446  
Utah JV [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         $ 1,700
Professional Fees 100   500 $ 700  
Legal and other professional fees payable $ 300   $ 300   200
Utah JV [Member] | Related Parties [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         1,400
Utah JV [Member] | Related Parties [Member] | Director [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         1,100
Utah JV [Member] | Related Parties [Member] | Board of Directors [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         200
Utah JV [Member] | Related Parties [Member] | Law Firm [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         $ 100