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SUBSEQUENT EVENTS (Details) | 1 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2015 shares | Nov. 18, 2015 | Nov. 17, 2015
ADS |  |  |
Subsequent events |  |  |
Ratio of American depositary shares ("ADSs") to ordinary shares |  | 8 | 4
Subsequent event | ADS |  |  |
Subsequent events |  |  |
Ratio of American depositary shares ("ADSs") to ordinary shares |  | 8 | 4
Subsequent event | Forecast | Qunar |  |  |
Subsequent events |  |  |
Company's newly-issued ordinary shares transferred in the share exchange transaction (in shares) | 5,000,000 |  |
Percentage of voting interest acquired | 56.00% |  |
Baidu | Subsequent event | Qunar |  |  |
Subsequent events |  |  |
Company's newly-issued ordinary shares transferred in the share exchange transaction (in shares) | 11,488,381 |  |
Percent of the Company's ordinary shares will be owned by Baidu in the share exchange transaction (as a percent) | 25.00% |  |
Percentage of voting interest acquired | 45.00% |  |
Baidu | Subsequent event | Qunar | Common Class A |  |  |
Subsequent events |  |  |
Qunar shares received in the share exchange transaction (in shares) | 178,702,519 |  |
Baidu | Subsequent event | Qunar | Common Class B |  |  |
Subsequent events |  |  |
Qunar shares received in the share exchange transaction (in shares) | 11,450,000 |  |
Certain Management and Directors of Qunar Cayman Islands Limited [Member] | Subsequent event | Forecast | Qunar |  |  |
Subsequent events |  |  |
Company's newly-issued ordinary shares transferred in the share exchange transaction (in shares) | 4,205,436 |  |
Certain Management and Directors of Qunar Cayman Islands Limited [Member] | Subsequent event | Forecast | Qunar | Common Class B |  |  |
Subsequent events |  |  |
Qunar shares received in the share exchange transaction (in shares) | 69,607,223 |  |

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