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INVESTMENTS (Details 5) ¥ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May. 31, 2015 USD ($) | Dec. 31, 2012 CNY (¥) | Sep. 30, 2015 director | Dec. 31, 2014 shares | Oct. 02, 2011 | Sep. 30, 2011
eLong |  |  |  |  |  |
Equity method investment disclosures |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) | 37.60% |  |  |  |  |
Total consideration of acquisition | $ | $ 414 |  |  |  |  |
Number Of Seats Allocated |  |  | 1 |  |  |
Number Of Board Of Directors Seats |  |  | 8 |  |  |
Home Inns |  |  |  |  |  |
Equity method investment disclosures |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) |  |  |  | 15.10% |  | 17.50%
Number of shares held | shares |  |  |  | 14,400,765 |  |
Noncash gain due to remeasurement of equity interest based on issuance of shares | ¥ |  | ¥ 39.3 |  |  |  |
Home Inns | Business Acquired by Home Inns |  |  |  |  |  |
Equity method investment disclosures |  |  |  |  |  |
Percentage of equity interest Home Inns acquired in a business |  |  |  |  | 100.00% |

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