INTANGIBLE ASSETS AND LIABILITIES, NET - Intangible Liabilities Amortization (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets and liabilities $ 10,359 $ 3,902 $ 0
Equipment Leasing Revenues | Lease Agreements      
Finite-Lived Intangible Assets [Line Items]      
Amortization of lease intangible assets and liabilities 6,774 2,694 0
Depreciation and Amortization | Customer Relationships      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 3,585 $ 1,208 $ 0