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Related Party Transactions - Additional Information (Details) - CNY (¥) ¥ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Related Party Transaction |  |  |
Donations | ¥ 3.2 | ¥ 3.5 | ¥ 2.8
Shanghai Dingnuo Technology Ltd |  |  |
Related Party Transaction |  |  |
Service fees paid | ¥ 5.5 | ¥ 9.2 | ¥ 6.0

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- Definition Donation Payments Made During Period + References No definition available. + Details
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Namespace Prefix: | noah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount paid as service fees for self-developing online mutual fund work station for relationship managers. + References No definition available. + Details
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Namespace Prefix: | noah_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=noah_ShanghaiDingnuoTechnologyLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |