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Significant Related Party Transactions (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Related party revenues	$ 132,793,592us-gaap_RevenueFromRelatedParties	$ 77,329,868us-gaap_RevenueFromRelatedParties	$ 25,982,724us-gaap_RevenueFromRelatedParties
One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	29,322,581us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember	20,841,594us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember	9,392,131us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember
Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	90,885,669us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember	55,508,435us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember	16,590,593us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember
Shanghai Gopher Asset Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	9,264,250us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherAssetManagementCompanyLimitedMember
Shanghai Gopher Asset Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	10,276,509us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherAssetManagementCompanyLimitedMember
Shanghai Gopher Asset Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	48,654us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherAssetManagementCompanyLimitedMember
Gopher Asset Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	5,093,514us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember	2,161,933us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember	3,866,439us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember
Gopher Asset Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	15,790,524us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember	11,827,050us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember	2,504,815us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember
Gopher Asset Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	10,607,614us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdMember
Gopher Capital GP | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	3,502,034us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember	20,004us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember	159,257us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember
Gopher Capital GP | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	5,091,211us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember	34,003us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember	14,002us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherCapitalGroupMember
Gopher- Nuobao (Shanghai) Asset Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	2,738,586us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherNuobaoShanghaiAssetManagementCompanyLimitedMember
Gopher- Nuobao (Shanghai) Asset Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	184,414us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherNuobaoShanghaiAssetManagementCompanyLimitedMember
Gopher- Nuobao (Shanghai) Asset Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	11,294us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherNuobaoShanghaiAssetManagementCompanyLimitedMember
Wanjia Win-Win Assets Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	2,224,784us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinAssetsManagementCompanyLimitedMember	433,024us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinAssetsManagementCompanyLimitedMember
Wanjia Win-Win Assets Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	15,333,971us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinAssetsManagementCompanyLimitedMember	5,047,542us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinAssetsManagementCompanyLimitedMember
Wuhu Gopher Asset Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	2,168,853us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember	5,570,754us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember	1,226,227us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember
Wuhu Gopher Asset Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	12,925,380us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember	10,665,773us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember	191,757us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember
Wuhu Gopher Asset Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues		336,107us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuGopherAssetManagementCompanyLimitedMember
Shanghai Gopher Languang Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	1,106,637us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember	3,489,082us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember	819,199us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember
Shanghai Gopher Languang Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	3,301,240us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember	4,885,604us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember	459,439us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember
Shanghai Gopher Languang Investment Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	1,145,515us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember	561,458us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherLanguangInvestmentManagementCompanyLimitedMember
Shanghai Gopher Zhengda Damuzhi Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	582,521us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherZhengdaDamuzhiInvestmentManagementCompanyLimitedMember
Shanghai Gopher Zhengda Damuzhi Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	798,399us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherZhengdaDamuzhiInvestmentManagementCompanyLimitedMember
Hangzhou Sequoia Heyuan Capital Investment Fund (Limited Partnership) | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	513,558us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouSequoiaHeyuanCapitalInvestmentFundLimitedPartnershipMember	131,164us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouSequoiaHeyuanCapitalInvestmentFundLimitedPartnershipMember	1,024,790us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouSequoiaHeyuanCapitalInvestmentFundLimitedPartnershipMember
Hangzhou Sequoia Heyuan Capital Investment Fund (Limited Partnership) | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	906,687us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouSequoiaHeyuanCapitalInvestmentFundLimitedPartnershipMember
Sequoia Capital Investment Management (Tianjin) Co., Ltd | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	481,461us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinSequoiaCapitalInvestmentFundLimitedPartnershipMember	127,965us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinSequoiaCapitalInvestmentFundLimitedPartnershipMember	218,860us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinSequoiaCapitalInvestmentFundLimitedPartnershipMember
Hangzhou Vanke Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	427,429us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouVankeInvestmentManagementCompanyLimitedMember	5,077,871us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouVankeInvestmentManagementCompanyLimitedMember
Hangzhou Vanke Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	6,058,713us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouVankeInvestmentManagementCompanyLimitedMember	3,151,268us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouVankeInvestmentManagementCompanyLimitedMember
Hangzhou Vanke Investment Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	10,225us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_HangzhouVankeInvestmentManagementCompanyLimitedMember
Shareholder transaction | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	426,154us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShareholdersMember
Shareholder transaction | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	59,481us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShareholdersMember
Shareholder transaction | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	2,541us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShareholdersMember
Tianjin Gopher Asset Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	403,099us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember	31,991us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember	645,699us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember
Tianjin Gopher Asset Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	4,082,036us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember	3,876,955us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember	3,622,393us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_TianjinGopherAssetManagementCoLtdMember
Kunshan Jingzhao Equity Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	248,201us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember	717,565us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember	215,657us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember
Kunshan Jingzhao Equity Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	2,552,337us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember	2,742,184us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember	2,111,583us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember
Kunshan Jingzhao Equity Investment Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	1,299us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_KunshanJingzhaoEquityInvestmentManagementLimitedMember
Gopher RE Credit Fund SP | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	123,847us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherReCreditFundSpMember
Shaoxing Sequoia Huiyuan Capital Investment Fund (Limited Partnership) | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	16,049us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShaoxingSequoiaJiyeHuiyuanCapitalInvestmentFundLimitedPartnershipMember	359,671us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShaoxingSequoiaJiyeHuiyuanCapitalInvestmentFundLimitedPartnershipMember	411,614us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShaoxingSequoiaJiyeHuiyuanCapitalInvestmentFundLimitedPartnershipMember
Financial Products Held By Shareholders | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues	1,604us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsHeldByShareholdersMember	21,906us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsHeldByShareholdersMember
Wuhu Bona Film Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues		1,037,354us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuBonaFilmInvestmentManagementLimitedMember
Wuhu Bona Film Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	1,142,560us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuBonaFilmInvestmentManagementLimitedMember	331,157us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WuhuBonaFilmInvestmentManagementLimitedMember
Chongqing Gopher Longxin Equity Investment Management Co., Ltd. | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues		807,242us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ChongqingGopherLongxinEquityInvestmentManagementCompanyLimitedMember	748,914us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ChongqingGopherLongxinEquityInvestmentManagementCompanyLimitedMember
Chongqing Gopher Longxin Equity Investment Management Co., Ltd. | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	1,675,845us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ChongqingGopherLongxinEquityInvestmentManagementCompanyLimitedMember	2,893,066us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ChongqingGopherLongxinEquityInvestmentManagementCompanyLimitedMember	268,632us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ChongqingGopherLongxinEquityInvestmentManagementCompanyLimitedMember
Gopher investment Fund SPC | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues		761,105us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherInvestmentFundSpcMember
Gopher investment Fund SPC | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues		528,338us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherInvestmentFundSpcMember
Financial Products Invested By Group And Affiliates | One Time Commissions
Related Party Transaction [Line Items]
Related party revenues		92,962us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsInvestedByGroupAndAffiliatesMember	55,475us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OneTimeCommissionsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsInvestedByGroupAndAffiliatesMember
Financial Products Invested By Group And Affiliates | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	313us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsInvestedByGroupAndAffiliatesMember	1,140,375us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsInvestedByGroupAndAffiliatesMember	1,010,330us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_FinancialProductsInvestedByGroupAndAffiliatesMember
Sequoia Capital Investment Management Tianjin Company Limited | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	8,546,576us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_SequoiaCapitalInvestmentManagementTianjinCompanyLimitedMember	8,385,120us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_SequoiaCapitalInvestmentManagementTianjinCompanyLimitedMember	6,407,642us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_SequoiaCapitalInvestmentManagementTianjinCompanyLimitedMember
Shanghai Gopher Investment Management Company Limited | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	1,283,681us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_ShanghaiGopherInvestmentManagementCompanyLimitedMember
Beijing Sequoia Heyuan Capital Investment Fund Limited Partnership | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	850,019us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_BeijingSequoiaHeyuanCapitalInvestmentFundLimitedPartnershipMember
Noah Holdings (Hong Kong) Limited | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	25,260us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_NoahHoldingsHongKongLimitedMember
Gopher Asset Management Co., Ltd., Subsidiary | Recurring Service Fees
Related Party Transaction [Line Items]
Related party revenues	513us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_RecurringServiceFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_GopherAssetManagementCoLtdSubsidiaryMember
Wanjia Win-Win Assets Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	756,696us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember	82,275us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_WanjiaWinwinInvestmentManagementLimitedMember
Yiwu Xinguang Equity Investment Fund Management Co., Ltd. | Other Service Fee
Related Party Transaction [Line Items]
Related party revenues	$ 1,504us-gaap_RevenueFromRelatedParties / us-gaap_IncomeStatementLocationAxis = noah_OtherServiceFeeMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = noah_YiwuXinguangEquityInvestmentFundmanagementMember

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Related Parties

-URI http://asc.fasb.org/extlink&oid=16382449



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 946

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.6-07.1(c))

-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 07

-Paragraph b

-Subparagraph 1

-Article 6

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