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Summary of Redeemable Noncontrolling Interest (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥) | Dec. 31, 2013 CNY (¥)
Temporary Equity Disclosure [Abstract] |  |  |  |
Balance as of January 1 | $ 292,461 | ¥ 1,894,502 |  | ¥ 1,033,283
Net losses |  |  |  | (61,857)
Other comprehensive income (loss) | 21,932 | 142,071 |  | (55,420)
Exercise of share-based awards |  |  |  | 464
Share-based compensation |  |  |  | 11,259
Issuance of subsidiary shares | 244,237 | 1,582,126 | ¥ 1,841,819 | 51,368
Accretion of redeemable noncontrolling interests | 50,817 | 329,180 | 52,683 | 31,799
Acquisition of subsidiaries' redeemable shares from shareholders |  |  |  | (121,962)
Reclassification of redeemable noncontrolling interests |  |  |  | ¥ (888,934)
Balance as of December 31 | $ 609,447 | ¥ 3,947,879 | ¥ 1,894,502 |

X
- 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 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 As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 + 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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- 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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