XML 24 R31.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Basis of Presentation - Additional Information (Detail) In Thousands, unless otherwise specified | Sep. 30, 2012 USD ($) | Sep. 30, 2012 CNY | Sep. 28, 2012
--- | --- | --- | ---
Variable Interest Entity [Line Items] |  |  |
Net assets of VIEs (in which the Company has no legal ownership) | $ 79,414 | 499,102 |
Exchange rate used for conversion of financial statements from RMB to US dollar |  |  | 6.2848

X
- Definition Translation rate of amounts from RMB into US$ for the convenience of the reader have been calculated at the exchange rate on the last date of calendar year-end reporting period as published on the website of the Federal Reserve Board. No representation is made that the RMB amounts could have been, or could be, converted into U.S. dollars at such rate. + References No definition available. + Details
Name: | bidu_CurrencyTranslationRateForFinancialStatementsPresentation
Namespace Prefix: | bidu_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net carrying amount of the consolidated Variable Interest Entity's assets and liabilities included in the reporting entity's statement of financial position. + References No definition available. + Details
Name: | us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration