TAXATION (Narrative) (Details)
¥ in Thousands, $ in Thousands |
12 Months Ended |
|
|
|
Dec. 31, 2017
CNY (¥)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
CNY (¥)
|
Dec. 31, 2015
CNY (¥)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
| Income Tax Contingency [Line Items] |
|
|
|
|
|
|
| Applicable tax rates |
25.00%
|
25.00%
|
25.00%
|
25.00%
|
|
|
| Income tax profits | ¥ |
¥ 0
|
|
¥ 0
|
¥ 0
|
|
|
| Income tax liabilities, interest rate |
0.05%
|
0.05%
|
|
|
|
|
| Income tax liabilities, penalty rate |
50.00%
|
50.00%
|
|
|
|
|
| Uncertain tax position, impact on taxes |
¥ 2,770
|
$ 426
|
1,467
|
9,041
|
|
|
| Accrued interest and penalties |
29,634
|
|
26,864
|
|
$ 4,554
|
|
| Undistributed earnings |
571,963
|
|
63,208
|
|
87,909
|
$ 9,715
|
| Undistributed earnings, which are not subject to withholding tax under prevailing tax law | $ |
|
|
|
|
51,457
|
7,909
|
| Unrecognized Tax Benefits |
41,358
|
|
¥ 38,420
|
¥ 36,090
|
6,356
|
5,905
|
| Income Tax Examination, Penalties and Interest Expense |
70,992
|
$ 10,911
|
|
|
|
|
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate |
¥ 18,381
|
|
|
|
$ 2,825
|
$ 21,300
|
| Property Leasing Arrangement [Member] |
|
|
|
|
|
|
| Income Tax Contingency [Line Items] |
|
|
|
|
|
|
| Value added tax |
17.00%
|
17.00%
|
|
|
|
|
| Technical Service [Member] |
|
|
|
|
|
|
| Income Tax Contingency [Line Items] |
|
|
|
|
|
|
| Value added tax |
6.00%
|
6.00%
|
|
|
|
|
| United States of America [Member] |
|
|
|
|
|
|
| Income Tax Contingency [Line Items] |
|
|
|
|
|
|
| Applicable tax rates |
35.00%
|
35.00%
|
|
|
|
|