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v2.4.1.9

Reconciliation of Effective Income Tax Provision of Tax Computed By Applying Statutory Income Tax Rate to Pre-Tax Income (Detail) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2014 CNY | Dec. 31, 2013 CNY | Dec. 31, 2012 CNY
Income Tax Disclosure [Abstract] |  |  |  |
Expected taxation at PRC EIT statutory rate | $ 578,231 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 3,587,693 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 3,046,254 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 2,991,359 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Effect of differing tax rates in different jurisdictions | 109,058 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | 676,663 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | 312,938 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | 138,931 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Permanent differences - non-taxable income | (2,015)us-gaap_IncomeTaxReconciliationTaxExemptIncome | (12,504)us-gaap_IncomeTaxReconciliationTaxExemptIncome | (69,673)us-gaap_IncomeTaxReconciliationTaxExemptIncome | (58,157)us-gaap_IncomeTaxReconciliationTaxExemptIncome
Permanent differences - non-deductible expenses | 19,864 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 123,245 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 168,735 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 58,201 us-gaap_IncomeTaxReconciliationNondeductibleExpense
Tax incentives relating to research and development expenditures | (86,759)us-gaap_IncomeTaxReconciliationDeductionsOther | (538,305)us-gaap_IncomeTaxReconciliationDeductionsOther | (318,652)us-gaap_IncomeTaxReconciliationDeductionsOther | (154,977)us-gaap_IncomeTaxReconciliationDeductionsOther
Effect of preferential tax rates inside the PRC | (305,771)us-gaap_IncomeTaxReconciliationTaxHolidays | (1,897,184)us-gaap_IncomeTaxReconciliationTaxHolidays | (2,152,806)us-gaap_IncomeTaxReconciliationTaxHolidays | (1,489,331)us-gaap_IncomeTaxReconciliationTaxHolidays
Effect of tax rate changes on deferred taxes | 4,536 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 28,146 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 21,573 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 0 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate
Over-accrued EIT for previous years | (24,679)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | (153,121)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | (32,982)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes | (15,084)us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes
Withholding tax on PRC subsidiaries' undistributed earnings | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments | 560,243 us-gaap_IncomeTaxReconciliationOtherAdjustments | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments
Addition to valuation allowance | 67,134 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 416,539 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 293,300 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 103,217 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Taxation for the year | $ 359,599 us-gaap_IncomeTaxExpenseBenefit | 2,231,172 us-gaap_IncomeTaxExpenseBenefit | 1,828,930 us-gaap_IncomeTaxExpenseBenefit | 1,574,159 us-gaap_IncomeTaxExpenseBenefit
Effective tax rate | 15.41%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 15.41%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 15.01%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 13.16%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Effect of preferential tax rates inside the PRC on basic earnings per Class A and Class B ordinary share | $ 8.64 us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare | 53.61 us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare | 61.53 us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare | 42.63 us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: 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.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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