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NET INVESTMENT IN SALES-TYPE LEASES (Narrative) (Details)
6 Months Ended
Jun. 30, 2013
Investment [Line Items]  
Sale Leaseback Transaction Lease Terms Under sales-type leases, Xian TCH leased TRT systems to Zhangzhi with terms of 5 and 13 years, respectively; and leased CHPG systems to Tong Chuan, Shengwei, and Jing Yang Shengwei respectively for 5 years, BMPG systems to Pucheng for 15 years, BMPG systems to Shenqiu Phase I for 11 years, Shenqiu Phase II for 9.5 years, a power and steam generating system from waste heat from metal refining to Erdos (five projects) for 20 years, and Datongtwo BPRT systems for 30 years.