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Summary of Principal Accounting Policies - Additional Information (Detail) | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  | 12 Months Ended |  |  |  |  |  | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2014 CNY | Dec. 31, 2014 Special Mention | Dec. 31, 2014 Substandard | Dec. 31, 2014 Doubtful | Dec. 31, 2014 Loss | May 31, 2011 Kunshan Jingzhao Equity Investment Management Co., Ltd. USD ($) | May 31, 2011 Kunshan Jingzhao Equity Investment Management Co., Ltd. CNY | Nov. 30, 2012 Kunshan Vantone Zhengyuan Private Equity Fund Management Co., Ltd USD ($) | Nov. 30, 2012 Kunshan Vantone Zhengyuan Private Equity Fund Management Co., Ltd CNY | Feb. 28, 2013 Wanjia Win-Win Assets Management Co., Ltd. USD ($) | Feb. 28, 2013 Wanjia Win-Win Assets Management Co., Ltd. CNY | Jul. 31, 2013 Wuhu Bona Film Investment Management Limited USD ($) | Jul. 31, 2013 Wuhu Bona Film Investment Management Limited CNY | Dec. 31, 2014 Short-term Loans | Dec. 31, 2014 Internet Finance Business | Dec. 31, 2014 Fund Managers | Dec. 31, 2014 Other Businesses | Dec. 31, 2012 Tianjin Gefei Asset Management Co., Ltd Investment | Dec. 31, 2011 Tianjin Gefei Asset Management Co., Ltd Investment | Dec. 31, 2010 Tianjin Gefei Asset Management Co., Ltd Investment | Dec. 31, 2014 Gopher Asset Management Co., Ltd. fund Investment | Dec. 31, 2013 Gopher Asset Management Co., Ltd. Investment fund | Dec. 31, 2012 Gopher Asset Management Co., Ltd. Investment | Dec. 31, 2014 Newly Established Gopher Asset Management Co., Ltd. Investment fund | Dec. 31, 2013 Newly Established Gopher Asset Management Co., Ltd. Investment fund | Dec. 31, 2012 Newly Established Gopher Asset Management Co., Ltd. Investment | Dec. 31, 2014 Variable Interest Entity, Primary Beneficiary USD ($) | Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary USD ($) | Dec. 31, 2014 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Revenue | Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Revenue | Dec. 31, 2012 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Revenue | Dec. 31, 2014 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Income (Loss) | Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Income (Loss) | Dec. 31, 2012 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Net Income (Loss) | Dec. 31, 2014 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Total Assets | Dec. 31, 2013 Variable Interest Entity, Primary Beneficiary Credit Concentration Risk Total Assets | Dec. 31, 2014 Minimum | Dec. 31, 2012 Minimum Tianjin Gefei Asset Management Co., Ltd | Dec. 31, 2014 Minimum CHINA | Dec. 31, 2014 Maximum | Dec. 31, 2012 Maximum Tianjin Gefei Asset Management Co., Ltd | Dec. 31, 2014 Maximum Gopher Asset Management Co., Ltd. Real Estate Funds | Dec. 31, 2013 Maximum Gopher Asset Management Co., Ltd. Real Estate Funds | Dec. 31, 2014 Maximum Gopher Asset Management Co., Ltd. Private Equity Funds Products | Dec. 31, 2013 Maximum Gopher Asset Management Co., Ltd. Private Equity Funds Products | Dec. 31, 2014 Maximum CHINA
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-free loans extended to VIE founders | $ 3,600,000 us-gaap_LoansAndLeasesReceivableRelatedParties |  |  | 27,000,000 us-gaap_LoansAndLeasesReceivableRelatedParties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest-free loans agreements expiry date | 2023-12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37.10%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 21.20%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 8.30%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 67.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = noah_NetIncomeLossMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 36.30%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = noah_NetIncomeLossMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 5.10%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = noah_NetIncomeLossMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 34.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AssetsTotalMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 30.70%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AssetsTotalMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CreditConcentrationRiskMember / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |  |  |  |  |  |  |  |  |
Ownership percentage in affiliate to represent influence |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00%noah_OwnershipInterestInVotingRightsOfInvesteeRequiredForSignificantInfluenceMinimum / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |
Number of private equity funds the company invested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_TianjinGefeiAssetManagementCompanyLimitedMember | 6 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_TianjinGefeiAssetManagementCompanyLimitedMember | 4 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_TianjinGefeiAssetManagementCompanyLimitedMember | 16 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 3 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 2 noah_NumberOfPrivateEquityFundInvested / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Interest ownership |  |  |  |  |  |  |  |  | 40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember | 40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanVantoneZhengyuanPrivateEquityFundManagementLimitedMember | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanVantoneZhengyuanPrivateEquityFundManagementLimitedMember | 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember | 35.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WuhuBonaFilmAndTelevisionCciCapitalLtdMember | 15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WuhuBonaFilmAndTelevisionCciCapitalLtdMember |  |  |  |  |  |  |  | 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = noah_TianjinGefeiAssetManagementCompanyLimitedMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  | 4.80%us-gaap_EquityMethodInvestmentOwnershipPercentage / dei_LegalEntityAxis = noah_TianjinGefeiAssetManagementCompanyLimitedMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 1.70%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_InvestmentTypeAxis = us-gaap_RealEstateFundsMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 2.30%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_InvestmentTypeAxis = us-gaap_RealEstateFundsMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 5.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_InvestmentTypeAxis = us-gaap_PrivateEquityFundsMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 5.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_InvestmentTypeAxis = us-gaap_PrivateEquityFundsMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Number of real estate funds the company invested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 75 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 38 us-gaap_NumberOfRealEstateProperties / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 14 us-gaap_NumberOfRealEstateProperties / noah_InvestmentFundStructuresAxis = noah_NewlyEstablishedMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 75 us-gaap_NumberOfRealEstateProperties / noah_InvestmentFundStructuresAxis = noah_NewlyEstablishedMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 38 us-gaap_NumberOfRealEstateProperties / noah_InvestmentFundStructuresAxis = noah_NewlyEstablishedMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of secondary market equity funds the company invested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 noah_NumberOfSecondaryMarketEquityFunds / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 2 noah_NumberOfSecondaryMarketEquityFunds / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of fixed income funds the company invested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 noah_NumberOfFixedIncomeFunds / noah_InvestmentFundStructuresAxis = noah_NewlyEstablishedMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember | 8 noah_NumberOfFixedIncomeFunds / noah_InvestmentFundStructuresAxis = noah_NewlyEstablishedMember / dei_LegalEntityAxis = noah_GopherAssetManagementCoLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Injected in to a joint venture |  |  |  |  |  |  |  |  | 600,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember | 4,000,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember | 600,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanVantoneZhengyuanPrivateEquityFundManagementLimitedMember | 3,800,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_KunshanVantoneZhengyuanPrivateEquityFundManagementLimitedMember | 3,500,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember | 21,000,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember | 100,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WuhuBonaFilmAndTelevisionCciCapitalLtdMember | 800,000 us-gaap_PaymentsToAcquireInterestInJointVenture / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = noah_WuhuBonaFilmAndTelevisionCciCapitalLtdMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from equity in affiliates | 2,200,504 us-gaap_IncomeLossFromEquityMethodInvestments | 1,191,833 us-gaap_IncomeLossFromEquityMethodInvestments | 617,361 us-gaap_IncomeLossFromEquityMethodInvestments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in affiliates | 35,817,261 us-gaap_EquityMethodInvestments | 14,742,364 us-gaap_EquityMethodInvestments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,662,915 us-gaap_EquityMethodInvestments / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 18,893,396 us-gaap_EquityMethodInvestments / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized software development costs, amortization period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  | 4 years |  |  |  |  |  |
Non-controlling interests | 14,028,321 us-gaap_MinorityInterest | 10,769,789 us-gaap_MinorityInterest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to non-controlling interests | 2,806,078 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 1,602,867 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 82,712 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Multiple element arrangements, revenue allocation | If the estimated selling price for recurring services increased (or decreased) by 1%, the revenue allocated to this revenue element would increase (decrease) by 0.1% to 0.7%. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other service fees as percentage of total net revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.63%noah_ServiceFeesAsPercentageOfTotalAnnualRevenue / us-gaap_InvestmentTypeAxis = noah_ShortTermLoansMember | 0.48%noah_ServiceFeesAsPercentageOfTotalAnnualRevenue / us-gaap_InvestmentTypeAxis = noah_InternetFinanceBusinessMember | 6.20%noah_ServiceFeesAsPercentageOfTotalAnnualRevenue / us-gaap_InvestmentTypeAxis = noah_FundManagersMember | 0.87%noah_ServiceFeesAsPercentageOfTotalAnnualRevenue / us-gaap_InvestmentTypeAxis = noah_OtherBusinessesMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business tax and related surcharges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.35%noah_BusinessTaxAndSurchargesRate / us-gaap_IncomeTaxAuthorityAxis = country_CN / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  | 5.70%noah_BusinessTaxAndSurchargesRate / us-gaap_IncomeTaxAuthorityAxis = country_CN / us-gaap_RangeAxis = us-gaap_MaximumMember
Government subsidies | $ 14,792,142 noah_GovernmentSubsidies | $ 5,323,670 noah_GovernmentSubsidies | $ 4,295,029 noah_GovernmentSubsidies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General reserve percentage of total loan receivable balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00%noah_PercentageOfGeneralReserve / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |  |
Loan loss provision rate |  |  |  |  | 2.00%noah_AllowanceForLoanLossesPercentage / us-gaap_InternalCreditAssessmentAxis = us-gaap_SpecialMentionMember | 25.00%noah_AllowanceForLoanLossesPercentage / us-gaap_InternalCreditAssessmentAxis = us-gaap_SubstandardMember | 50.00%noah_AllowanceForLoanLossesPercentage / us-gaap_InternalCreditAssessmentAxis = us-gaap_DoubtfulMember | 100.00%noah_AllowanceForLoanLossesPercentage / us-gaap_InternalCreditAssessmentAxis = us-gaap_UnlikelyToBeCollectedFinancingReceivableMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
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- Definition For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph e -Article 9 + Details
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- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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