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Summary of Redeemable Noncontrolling Interest (Detail) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 USD ($) | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY | Dec. 31, 2011 CNY
Temporary Equity Disclosure [Abstract] |  |  |  |  |  |  |  |
Balance as of January 1 | $ 170,686 |  | 1,033,283 |  | 935,978 |  | 0 |
Business combination | 0 |  | 0 |  | 100,101 |  | 942,004 |
Net losses | (10,218) |  | (61,857) |  | (55,804) |  | (10,284) |
Other comprehensive losses | (9,155) |  | (55,420) |  | (690) |  | (995) |
Exercise of share-based awards | 77 |  | 464 |  | 0 |  | 0 |
Share-based compensation | 1,860 |  | 11,259 |  | 5,566 |  | 1,992 |
Issuance of subsidiary shares | 8,485 |  | 51,368 |  | 25,989 |  | 3,261 |
Accretion of redeemable noncontrolling interests | 5,253 |  | 31,799 |  | 22,143 |  | 0 |
Acquisition of subsidiaries' redeemable shares from noncontrolling shareholders | (20,147) | [1] | (121,962) | [1] | 0 | [1] | 0 | [1]
Reclassification of redeemable noncontrolling interests | (146,841) | [2] | (888,934) | [2] | 0 | [2] | 0 | [2]
Balance as of December 31 | $ 0 |  | 0 |  | 1,033,283 |  | 935,978 |
[1] | The Company purchased the redeemable noncontrolling interests of Qiyi and B.D. Mobile Telecommunication Limited in the year ended December 31, 2013. The difference between the consideration paid by the Company to the noncontrolling interest holders of RMB260.40 million (US$43.02 million), and the carrying amount of the redeemable noncontrolling interests of RMB121.96 million (US$20.15 million), which amounted to RMB138.44 million (US$22.87 million) was recognized in additional paid-in capital in accordance with ASC 810.
[2] | The carrying amount of the redeemable noncontrolling interests of Qunar amounting to RMB888.93 million (US$146.84 million) was reclassified from mezzanine equity to permanent equity without reversing any prior accretions on November 1, 2013 when Qunar completed its IPO in NASDAQ and the underlying redemption rights terminated accordingly.

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- Definition Amount of decrease in Redeemable Noncontrolling Interests from redeeming or purchasing the interests of redeemable noncontrolling shareholders. + References No definition available. + Details
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- Definition Change of temporary equity due to equity issuance of subsidiaries. + References No definition available. + Details
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- Definition Change of temporary equity during the period due to the reclassification of temporary equity to permanent equity since the redemption rights of the equity instruments are terminated. + References No definition available. + Details
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- Definition Increase in redeemable noncontrolling interest balance because of a business combination that occurred during the period. + References No definition available. + Details
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- Definition Change of temporary equity during the period due to the recognized amount of share-based compensation. + References No definition available. + Details
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- Definition Value of accretion of temporary equity to its redemption value during the period. + References No definition available. + Details
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- Definition Carrying amount, attributable to noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References No definition available. + Details
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- Definition Adjustments to temporary equity resulting from foreign currency translation adjustments. + References No definition available. + Details
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- Definition The portion of net income or loss attributable to temporary equity interest. + References No definition available. + Details
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- Definition This element may be used to disclose other activity associated with temporary equity that is not separately disclosed. + References No definition available. + Details
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