XML 40 R40.htm IDEA: XBRL DOCUMENT v2.4.1.9

Summary of Subsidiaries (Detail)	12 Months Ended
	Dec. 31, 2014
Shanghai Noah Rongyao Investment Consulting Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Aug. 24, 2007
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_ShanghaiNoahRongyaoInvestmentConsultingCompanyLimitedMember
Shanghai Noah Financial Services Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Apr. 18, 2008	[1]
Place of Incorporation	PRC	[1]
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_ShanghaiNoahFinancialServicesCompanyLimitedMember	[1]
Tianjin Noah Wealth Management Consulting Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Dec. 26, 2008
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_TianjinNoahWealthManagementConsultingCoLtdMember
Kunshan Noah Xingguan Investment Management Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Aug. 12, 2011
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_KunshanNoahXingguanInvestmentManagementCompanyLimitedMember
Noah Holdings (Hong Kong) Limited
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Sep. 01, 2011
Place of Incorporation	Hong Kong
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_NoahHoldingsHongKongLimitedMember
Shanghai Rongyao Information Technology Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Mar. 02, 2012
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_ShanghaiRongyaoInformationTechnologyCompanyLimitedMember
Noah Financial Express (Wuhu) Microfinance Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Aug. 13, 2013
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_NoahFinancialExpressWuhuMicrofinanceCoLtdMember
Noah Commercial Factoring Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Apr. 01, 2014
Place of Incorporation	PRC
Percentage of Ownership	100.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_NoahCommercialFactoringCoLtdMember
Shanghai Noah Yijie Finance Technology Co., Ltd
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Date of Incorporation	Mar. 17, 2014
Place of Incorporation	PRC
Percentage of Ownership	90.00%us-gaap_MinorityInterestOwnershipPercentageByParent / dei_LegalEntityAxis = noah_ShanghaiNoahYijieFinanceTechnologyCompanyLimitedMember
[1] In August 2012, Shanghai Noah Yuanzheng Investment Consulting Co., Ltd. was renamed as Shanghai Noah Financial Service Co., Ltd., after it obtained the regulatory approval to authorize its business scope to include providing investment advisory, wealth management and related financial services.

X

- Definition

Date when an entity was incorporated

+ References

No definition available.

+ Details

Name:	dei_EntityIncorporationDateOfIncorporation
Namespace Prefix:	dei_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

State or Country Name where an entity is incorporated

+ References

No definition available.

+ Details

Name:	dei_EntityIncorporationStateCountryName
Namespace Prefix:	dei_
Data Type:	xbrli:normalizedStringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=noah_KunshanNoahXingguanInvestmentManagementCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_NoahCommercialFactoringCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_NoahFinancialExpressWuhuMicrofinanceCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_NoahHoldingsHongKongLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_ShanghaiNoahFinancialServicesCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_ShanghaiNoahRongyaoInvestmentConsultingCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_ShanghaiNoahYijieFinanceTechnologyCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_ShanghaiRongyaoInformationTechnologyCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=noah_TianjinNoahWealthManagementConsultingCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: