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Restricted Net Assets - Additional Information (Detail) In Thousands, unless otherwise specified | Sep. 30, 2012 USD ($) | Sep. 30, 2012 CNY | Dec. 31, 2011 CNY
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Restricted Cash and Cash Equivalents Items [Line Items] |  |  |
Net assets restricted with respect to transferring to the company | $ 282,081 | 1,772,820 | 1,218,289

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- Definition Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph e -Subparagraph 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)(3)(ii)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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- Details
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