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EARNINGS PER SHARE (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2014 | Dec. 31, 2013
Earnings Per Share [Abstract] |  |
Schedule of Basic and Diluted Earnings Per Share | Basic and diluted earnings per share for each of the periods presented are calculated as follows:
|  | For the nine months ended September 30, |
|  | 2013 |  |  | 2014 |
|  | Ordinary shares RMB |  |  | Class A RMB |  |  | Class A US$ |  |  | Class B RMB |  |  | Class B US$ |
|  | (Unaudited) |  |  | (Unaudited) |  |  | (Unaudited) |  |  | (Unaudited) |  |  | (Unaudited) |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  | 333,485 |  |  |  | 175,021 |  |  |  | 28,514 |  |  |  | 324,102 |  |  |  | 52,803 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average ordinary shares outstanding |  |  | 100,000,000 |  |  |  | 37,147,194 |  |  |  | 37,147,194 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  | 3.33 |  |  |  | 4.71 |  |  |  | 0.77 |  |  |  | 4.71 |  |  |  | 0.77 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  | 333,485 |  |  |  | 193,956 |  |  |  | 31,599 |  |  |  | 305,167 |  |  |  | 49,718 |
Reallocation of undistributed income from continuing operations as a result of conversion of Class B to Class A ordinary shares |  |  | — |  |  |  | 305,167 |  |  |  | 49,718 |  |  |  | — |  |  |  | — |
Net income |  |  | 333,485 |  |  |  | 499,123 |  |  |  | 81,317 |  |  |  | 305,167 |  |  |  | 49,718 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average ordinary shares outstanding |  |  | 100,000,000 |  |  |  | 37,147,194 |  |  |  | 37,147,194 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Conversion of Class B to Class A ordinary shares |  |  | — |  |  |  | 68,788,940 |  |  |  | 68,788,940 |  |  |  | — |  |  |  | — |
Dilutive effect of stock options |  |  | 1,322,763 |  |  |  | 6,573,095 |  |  |  | 6,573,095 |  |  |  | — |  |  |  | — |
Weighted-average number of shares outstanding-diluted |  |  | 101,322,763 |  |  |  | 112,509,229 |  |  |  | 112,509,229 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  |  | 3.29 |  |  |  | 4.44 |  |  |  | 0.72 |  |  |  | 4.44 |  |  |  | 0.72 |
| Basic and diluted earnings per share for each of the years presented are calculated as follows:
|  | Year ended December 31, |
|  | 2011 |  |  | 2012 |  |  | 2013 |
|  | Ordinary shares |  |  | Ordinary shares |  |  | Class A |  |  | Class A |  |  | Class B |  |  | Class B |
|  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |  |  | RMB |  |  | US$ |
Basic earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  | 135,446 |  |  |  | 212,881 |  |  |  | 142,053 |  |  |  | 23,465 |  |  |  | 314,109 |  |  |  | 51,887 |
Loss from discontinued operations |  |  | (4,182 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net income |  |  | 131,264 |  |  |  | 212,881 |  |  |  | 142,053 |  |  |  | 23,465 |  |  |  | 314,109 |  |  |  | 51,887 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average ordinary shares outstanding |  |  | 100,000,000 |  |  |  | 100,000,000 |  |  |  | 31,109,214 |  |  |  | 31,109,214 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Basic earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  | 1.35 |  |  |  | 2.13 |  |  |  | 4.57 |  |  |  | 0.75 |  |  |  | 4.57 |  |  |  | 0.75 |
Loss from discontinued operations |  |  | (0.04 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net income |  |  | 1.31 |  |  |  | 2.13 |  |  |  | 4.57 |  |  |  | 0.75 |  |  |  | 4.57 |  |  |  | 0.75 |
Diluted earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  | 135,446 |  |  |  | 212,881 |  |  |  | 155,394 |  |  |  | 25,669 |  |  |  | 300,768 |  |  |  | 49,683 |
Loss from discontinued operations |  |  | (4,182 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Reallocation of undistributed income from continuing operations as a result of conversion of Class B to Class A ordinary shares (Note 15) |  |  | — |  |  |  | — |  |  |  | 300,768 |  |  |  | 49,683 |  |  |  | — |  |  |  | — |
Net income |  |  | 131,264 |  |  |  | 212,881 |  |  |  | 456,162 |  |  |  | 75,352 |  |  |  | 300,768 |  |  |  | 49,683 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average ordinary shares outstanding |  |  | 100,000,000 |  |  |  | 100,000,000 |  |  |  | 31,109,214 |  |  |  | 31,109,214 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Conversion of Class B to Class A ordinary shares (Note 15) |  |  | — |  |  |  | — |  |  |  | 68,788,940 |  |  |  | 68,788,940 |  |  |  | — |  |  |  | — |
Dilutive effect of stock options |  |  | 189,928 |  |  |  | 650,652 |  |  |  | 4,431,072 |  |  |  | 4,431,072 |  |  |  | — |  |  |  | — |
Weighted-average number of shares outstanding- diluted |  |  | 100,189,928 |  |  |  | 100,650,652 |  |  |  | 104,329,226 |  |  |  | 104,329,226 |  |  |  | 68,788,940 |  |  |  | 68,788,940 |
Diluted earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations |  |  | 1.35 |  |  |  | 2.12 |  |  |  | 4.37 |  |  |  | 0.72 |  |  |  | 4.37 |  |  |  | 0.72 |
Loss from discontinued operations |  |  | (0.04 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net income |  |  | 1.31 |  |  |  | 2.12 |  |  |  | 4.37 |  |  |  | 0.72 |  |  |  | 4.37 |  |  |  | 0.72 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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