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RELATED PARTIES - Other Agreements (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Related Party Transaction [Line Items]          
Professional Fees $ 1,262 $ 1,045 $ 2,223 $ 2,291  
Utah JV [Member]          
Related Party Transaction [Line Items]          
Syndicated financing of investment         $ 1,700
Professional Fees 200 $ 400 400 $ 500  
Legal and other professional fees payable $ 400   $ 400   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