INVESTMENT IN SALES-TYPE LEASES, NET (Narrative) (Details)	6 Months Ended
	Jun. 30, 2015
Investment [Line Items]
Sale Leaseback Transaction Lease Terms	Under sales-type leases, Xi’an TCH leases the following systems: (i) BMPG systems to Pucheng Phase I and II (15 and 11 year terms, respectively); (ii) BMPG systems to Shenqiu Phase I (11 year term); (iii) Shenqiu Phase II (9.5 year term); and (iv) WGPG systems to Yida (15 year term).