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BANK AND OTHER BORROWINGS (Narrative) (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 18, 2014 USD ($) $ / shares | Dec. 31, 2017 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2015 USD ($) | Jun. 30, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Property and equipment pledged as collateral |  | ¥ 37,481 |  | ¥ 111,728 |  | $ 5,761 |  |
Accounts receivable used to secure bank borrowings |  | 13,164 |  | 34,850 |  | 2,023 |  |
Net investment in direct financing leases |  | 72,952 |  | 86,250 |  | 11,213 |  |
Restricted cash |  | ¥ 563,986 |  | ¥ 568,494 |  | $ 86,683 |  |
Short-term bank borrowings, weighted average interest rate |  | 2.45% |  | 2.72% |  | 2.45% |  |
Proceeds received from long -term bank borrowing |  | ¥ 280,459 | $ 43,106 | ¥ 16,500 | ¥ 343,301 |  |  |
Loss on debt extinguishment |  | 0 | $ 0 | 0 | (36,648) |  |  |
Equity Method Investments |  | 732,167 |  | 210,088 |  | $ 112,532 |  |
Construction in Progress, Gross |  | 206,244 |  |  |  | 31,699 |  |
Prepaid Expense |  | 48,273 |  |  |  | 7,419 |  |
International Finance Corporation [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Conversion price per ADS | $ / shares | $ 6.90 |  |  |  |  |  |  |
Long -term bank borrowing | $ 14,149 |  |  |  |  |  |  |
Principal amount of loan |  |  |  |  |  |  | $ 10,000 |
Proceeds received from long -term bank borrowing | 20,000 |  |  |  |  |  |  |
Fair value of the bifurcated compound derivative | 5,851 |  |  |  | ¥ 64,804 |  |  |
Principal amount of loan | $ 20,000 |  |  |  |  |  |  |
Loss on debt extinguishment | ¥ |  | 36,648 |  |  |  |  |  |
Line of Credit Entered into by Subsidiary [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Net investment in direct financing leases |  | ¥ 24,224 |  | ¥ 75,506 |  | $ 3,723 |  |
Long-term Bank and Other Borrowings [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long-term bank and other borrowings, weighted average interest rate |  | 12.16% |  | 7.44% |  | 12.16% |  |
Short Term Bank Credit Lines [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Unutilized bank credit lines |  | ¥ 7,485 |  |  |  | $ 1,150 |  |
Long-term loan agreement [Member] | Gopher [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Long -term bank borrowing |  |  |  |  |  | 24,945 |  |
Principal amount of loan | ¥ |  | 162,297 |  |  |  |  |  |
Principal amount of loan |  |  |  |  |  |  |  | $ 25,000
Interest rate (as a percent) |  |  |  |  |  |  |  | 9.00%
Accrued interest |  | 5,523 |  |  |  | 849 |  |
Long-term loan agreement [Member] | Guofu Huimei [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount of loan |  | ¥ 300,000 |  |  |  | $ 46,109 |  |
Interest rate (as a percent) |  | 15.00% |  |  |  | 15.00% |  |

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- Definition The net investment in direct financing leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738 + Details
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